diff --git a/afl/src/mutators/mutations.rs b/afl/src/mutators/mutations.rs
index 47488ae1f0..6a1eb36614 100644
--- a/afl/src/mutators/mutations.rs
+++ b/afl/src/mutators/mutations.rs
@@ -30,6 +30,43 @@ where
     fn add_mutation(&mut self, mutation: MutationFunction<Self, C, I, R>);
 }
 
+const ARITH_MAX: u64 = 35;
+
+const INTERESTING_8: [i8; 9]  = [-128, -1, 0, 1, 16, 32, 64, 100, 127];
+const INTERESTING_16: [i16; 19] = [-128, -1, 0, 1, 16, 32, 64, 100, 127, -32768, -129, 128, 255, 256, 512, 1000, 1024, 4096, 32767];
+const INTERESTING_32: [i32; 27] = [-128, -1, 0, 1, 16, 32, 64, 100, 127, -32768, -129, 128, 255, 256, 512, 1000, 1024, 4096, 32767, -2147483648, -100663046, -32769, 32768, 65535, 65536, 100663045, 2147483647];
+
+fn self_mem_move(data: &mut [u8], from: usize, to: usize, len: usize) {
+    debug_assert!(from + len <= data.len());
+    debug_assert!(to + len <= data.len());
+    let ptr = data.as_mut_ptr();
+    unsafe {
+        core::ptr::copy(ptr.offset(from as isize),
+        ptr.offset(to as isize),
+        len)
+    }
+}
+
+fn mem_move(dst: &mut [u8], src: &[u8], from: usize, to: usize, len: usize) {
+    debug_assert!(from + len <= src.len());
+    debug_assert!(to + len <= dst.len());
+    let dst_ptr = dst.as_mut_ptr();
+    let src_ptr = src.as_ptr();
+    unsafe {
+        core::ptr::copy(src_ptr.offset(from as isize),
+        dst_ptr.offset(to as isize),
+        len)
+    }
+}
+
+fn mem_set(data: &mut [u8], from: usize, len: usize, val: u8) {
+    debug_assert!(from + len <= data.len());
+    let ptr = data.as_mut_ptr();
+    unsafe {
+        core::ptr::write_bytes(ptr.offset(from as isize), val, len)
+    }
+}
+
 /// Bitflip mutation for inputs with a bytes vector
 pub fn mutation_bitflip<M, C, I, R>(
     _mutator: &mut M,
@@ -151,25 +188,236 @@ where
     }
 }
 
-/*
-pub fn mutation_bytesexpand<M, C, I, R>(
-    mutator: &mut M,
+pub fn mutation_byterand<M, C, I, R>(
+    _mutator: &mut M,
     rand: &mut R,
     _corpus: &C,
     input: &mut I,
 ) -> Result<MutationResult, AflError>
 where
-    M: Mutator<C, I, R> + HasMaxSize,
+    M: Mutator<C, I, R>,
     C: Corpus<I, R>,
     I: Input + HasBytesVec,
     R: Rand,
 {
-    let len = rand.below(mutator.max_size() as u64) as usize;
-
-
-    Ok(MutationResult::Mutated)
+    if input.bytes().len() == 0 {
+        Ok(MutationResult::Skipped)
+    } else {
+        let idx = rand.below(input.bytes().len() as u64) as usize;
+        unsafe {
+            // moar speed, no bound check
+            *input.bytes_mut().get_unchecked_mut(idx) = rand.below(256) as u8;
+        }
+        Ok(MutationResult::Mutated)
+    }
+}
+
+pub fn mutation_byteadd<M, C, I, R>(
+    _mutator: &mut M,
+    rand: &mut R,
+    _corpus: &C,
+    input: &mut I,
+) -> Result<MutationResult, AflError>
+where
+    M: Mutator<C, I, R>,
+    C: Corpus<I, R>,
+    I: Input + HasBytesVec,
+    R: Rand,
+{
+    if input.bytes().len() <= 1 {
+        Ok(MutationResult::Skipped)
+    } else {
+        let idx = rand.below(input.bytes().len() as u64 -1) as usize;
+        unsafe {
+            // moar speed, no bound check
+            let ptr = input.bytes_mut().get_unchecked_mut(idx) as *mut u8;
+            let num = 1 + rand.below(ARITH_MAX) as u8;
+            match rand.below(2) {
+                0 => *ptr += num,
+                _ => *ptr -= num,
+            };
+        }
+        Ok(MutationResult::Mutated)
+    }
+}
+
+pub fn mutation_wordadd<M, C, I, R>(
+    _mutator: &mut M,
+    rand: &mut R,
+    _corpus: &C,
+    input: &mut I,
+) -> Result<MutationResult, AflError>
+where
+    M: Mutator<C, I, R>,
+    C: Corpus<I, R>,
+    I: Input + HasBytesVec,
+    R: Rand,
+{
+    if input.bytes().len() <= 1 {
+        Ok(MutationResult::Skipped)
+    } else {
+        let idx = rand.below(input.bytes().len() as u64 -1) as usize;
+        unsafe {
+            // moar speed, no bound check
+            let ptr = input.bytes_mut().get_unchecked_mut(idx) as *mut _ as *mut u16;
+            let num = 1 + rand.below(ARITH_MAX) as u16;
+            match rand.below(4) {
+                0 => *ptr += num,
+                1 => *ptr -= num,
+                2 => *ptr = ((*ptr).swap_bytes() + num).swap_bytes(),
+                _ => *ptr = ((*ptr).swap_bytes() - num).swap_bytes(),
+            };
+        }
+        Ok(MutationResult::Mutated)
+    }
+}
+
+pub fn mutation_dwordadd<M, C, I, R>(
+    _mutator: &mut M,
+    rand: &mut R,
+    _corpus: &C,
+    input: &mut I,
+) -> Result<MutationResult, AflError>
+where
+    M: Mutator<C, I, R>,
+    C: Corpus<I, R>,
+    I: Input + HasBytesVec,
+    R: Rand,
+{
+    if input.bytes().len() <= 1 {
+        Ok(MutationResult::Skipped)
+    } else {
+        let idx = rand.below(input.bytes().len() as u64 -1) as usize;
+        unsafe {
+            // moar speed, no bound check
+            let ptr = input.bytes_mut().get_unchecked_mut(idx) as *mut _ as *mut u32;
+            let num = 1 + rand.below(ARITH_MAX) as u32;
+            match rand.below(4) {
+                0 => *ptr += num,
+                1 => *ptr -= num,
+                2 => *ptr = ((*ptr).swap_bytes() + num).swap_bytes(),
+                _ => *ptr = ((*ptr).swap_bytes() - num).swap_bytes(),
+            };
+        }
+        Ok(MutationResult::Mutated)
+    }
+}
+
+pub fn mutation_qwordadd<M, C, I, R>(
+    _mutator: &mut M,
+    rand: &mut R,
+    _corpus: &C,
+    input: &mut I,
+) -> Result<MutationResult, AflError>
+where
+    M: Mutator<C, I, R>,
+    C: Corpus<I, R>,
+    I: Input + HasBytesVec,
+    R: Rand,
+{
+    if input.bytes().len() <= 1 {
+        Ok(MutationResult::Skipped)
+    } else {
+        let idx = rand.below(input.bytes().len() as u64 -1) as usize;
+        unsafe {
+            // moar speed, no bound check
+            let ptr = input.bytes_mut().get_unchecked_mut(idx) as *mut _ as *mut u64;
+            let num = 1 + rand.below(ARITH_MAX) as u64;
+            match rand.below(4) {
+                0 => *ptr += num,
+                1 => *ptr -= num,
+                2 => *ptr = ((*ptr).swap_bytes() + num).swap_bytes(),
+                _ => *ptr = ((*ptr).swap_bytes() - num).swap_bytes(),
+            };
+        }
+        Ok(MutationResult::Mutated)
+    }
+}
+
+pub fn mutation_byteinteresting<M, C, I, R>(
+    _mutator: &mut M,
+    rand: &mut R,
+    _corpus: &C,
+    input: &mut I,
+) -> Result<MutationResult, AflError>
+where
+    M: Mutator<C, I, R>,
+    C: Corpus<I, R>,
+    I: Input + HasBytesVec,
+    R: Rand,
+{
+    if input.bytes().len() <= 1 {
+        Ok(MutationResult::Skipped)
+    } else {
+        let idx = rand.below(input.bytes().len() as u64 -1) as usize;
+        let val = INTERESTING_8[rand.below(INTERESTING_8.len() as u64) as usize] as u8;
+        unsafe {
+            // moar speed, no bound check
+            *input.bytes_mut().get_unchecked_mut(idx) = val;
+        }
+        Ok(MutationResult::Mutated)
+    }
+}
+
+pub fn mutation_wordinteresting<M, C, I, R>(
+    _mutator: &mut M,
+    rand: &mut R,
+    _corpus: &C,
+    input: &mut I,
+) -> Result<MutationResult, AflError>
+where
+    M: Mutator<C, I, R>,
+    C: Corpus<I, R>,
+    I: Input + HasBytesVec,
+    R: Rand,
+{
+    if input.bytes().len() <= 1 {
+        Ok(MutationResult::Skipped)
+    } else {
+        let idx = rand.below(input.bytes().len() as u64 -1) as usize;
+        let val = INTERESTING_16[rand.below(INTERESTING_8.len() as u64) as usize] as u16;
+        unsafe {
+            // moar speed, no bound check
+            let ptr = input.bytes_mut().get_unchecked_mut(idx) as *mut _ as *mut u16;
+            if rand.below(2) == 0 {
+                *ptr = val;
+            } else {
+                *ptr = val.swap_bytes();
+            }
+        }
+        Ok(MutationResult::Mutated)
+    }
+}
+
+pub fn mutation_dwordinteresting<M, C, I, R>(
+    _mutator: &mut M,
+    rand: &mut R,
+    _corpus: &C,
+    input: &mut I,
+) -> Result<MutationResult, AflError>
+where
+    M: Mutator<C, I, R>,
+    C: Corpus<I, R>,
+    I: Input + HasBytesVec,
+    R: Rand,
+{
+    if input.bytes().len() <= 1 {
+        Ok(MutationResult::Skipped)
+    } else {
+        let idx = rand.below(input.bytes().len() as u64 -1) as usize;
+        let val = INTERESTING_32[rand.below(INTERESTING_8.len() as u64) as usize] as u32;
+        unsafe {
+            // moar speed, no bound check
+            let ptr = input.bytes_mut().get_unchecked_mut(idx) as *mut _ as *mut u32;
+            if rand.below(2) == 0 {
+                *ptr = val;
+            } else {
+                *ptr = val.swap_bytes();
+            }
+        }
+        Ok(MutationResult::Mutated)
+    }
 }
-*/
 
 pub fn mutation_bytesdelete<M, C, I, R>(
     _mutator: &mut M,
@@ -195,6 +443,187 @@ where
     Ok(MutationResult::Mutated)
 }
 
+pub fn mutation_bytesexpand<M, C, I, R>(
+    mutator: &mut M,
+    rand: &mut R,
+    _corpus: &C,
+    input: &mut I,
+) -> Result<MutationResult, AflError>
+where
+    M: Mutator<C, I, R> + HasMaxSize,
+    C: Corpus<I, R>,
+    I: Input + HasBytesVec,
+    R: Rand,
+{
+    let size = input.bytes().len();
+    let off = if size == 0 {
+        0
+    } else {
+        rand.below(size as u64 -1)
+    } as usize;
+    let len = rand.below(core::cmp::min(16, mutator.max_size() as u64)) as usize;
+
+    input.bytes_mut().resize(size + len, 0);
+    self_mem_move(input.bytes_mut(), off, off + len, len);
+    Ok(MutationResult::Mutated)
+}
+
+pub fn mutation_bytesinsert<M, C, I, R>(
+    mutator: &mut M,
+    rand: &mut R,
+    _corpus: &C,
+    input: &mut I,
+) -> Result<MutationResult, AflError>
+where
+    M: Mutator<C, I, R> + HasMaxSize,
+    C: Corpus<I, R>,
+    I: Input + HasBytesVec,
+    R: Rand,
+{
+    let size = input.bytes().len();
+    let off = if size == 0 {
+        0
+    } else {
+        rand.below(size as u64 -1)
+    } as usize;
+    let len = rand.below(core::cmp::min(16, mutator.max_size() as u64)) as usize;
+
+    let val = input.bytes()[rand.below(size as u64) as usize];
+    input.bytes_mut().resize(size + len, 0);
+    self_mem_move(input.bytes_mut(), off, off + len, len);
+    mem_set(input.bytes_mut(), off, len, val);
+    Ok(MutationResult::Mutated)
+}
+
+pub fn mutation_bytesrandinsert<M, C, I, R>(
+    mutator: &mut M,
+    rand: &mut R,
+    _corpus: &C,
+    input: &mut I,
+) -> Result<MutationResult, AflError>
+where
+    M: Mutator<C, I, R> + HasMaxSize,
+    C: Corpus<I, R>,
+    I: Input + HasBytesVec,
+    R: Rand,
+{
+    let size = input.bytes().len();
+    let off = if size == 0 {
+        0
+    } else {
+        rand.below(size as u64 -1)
+    } as usize;
+    let len = rand.below(core::cmp::min(16, mutator.max_size() as u64)) as usize;
+
+    let val = rand.below(256) as u8;
+    input.bytes_mut().resize(size + len, 0);
+    self_mem_move(input.bytes_mut(), off, off + len, len);
+    mem_set(input.bytes_mut(), off, len, val);
+    Ok(MutationResult::Mutated)
+}
+
+pub fn mutation_bytesset<M, C, I, R>(
+    _mutator: &mut M,
+    rand: &mut R,
+    _corpus: &C,
+    input: &mut I,
+) -> Result<MutationResult, AflError>
+where
+    M: Mutator<C, I, R>,
+    C: Corpus<I, R>,
+    I: Input + HasBytesVec,
+    R: Rand,
+{
+    let size = input.bytes().len();
+    if size == 0 {
+        return Ok(MutationResult::Skipped);
+    }
+
+    let val = input.bytes()[rand.below(size as u64) as usize];
+    let start = if size == 1 { 0 } else { rand.below(size as u64 -1) as usize };
+    let end = rand.below((size - start) as u64) as usize;
+    mem_set(input.bytes_mut(), start, end - start, val);
+    Ok(MutationResult::Mutated)
+}
+
+pub fn mutation_bytesrandset<M, C, I, R>(
+    _mutator: &mut M,
+    rand: &mut R,
+    _corpus: &C,
+    input: &mut I,
+) -> Result<MutationResult, AflError>
+where
+    M: Mutator<C, I, R>,
+    C: Corpus<I, R>,
+    I: Input + HasBytesVec,
+    R: Rand,
+{
+    let size = input.bytes().len();
+    if size == 0 {
+        return Ok(MutationResult::Skipped);
+    }
+
+    let val = rand.below(256) as u8;
+    let start = if size == 1 { 0 } else { rand.below(size as u64 -1) as usize };
+    let end = rand.below((size - start) as u64) as usize;
+    mem_set(input.bytes_mut(), start, end - start, val);
+    Ok(MutationResult::Mutated)
+}
+
+pub fn mutation_bytescopy<M, C, I, R>(
+    _mutator: &mut M,
+    rand: &mut R,
+    _corpus: &C,
+    input: &mut I,
+) -> Result<MutationResult, AflError>
+where
+    M: Mutator<C, I, R>,
+    C: Corpus<I, R>,
+    I: Input + HasBytesVec,
+    R: Rand,
+{
+    let size = input.bytes().len();
+    if size <= 1 {
+        return Ok(MutationResult::Skipped);
+    }
+
+    let from = rand.below(input.bytes().len() as u64 -1) as usize;
+    let to = rand.below(input.bytes().len() as u64 -1) as usize;
+    let len = rand.below((size - core::cmp::max(from, to)) as u64) as usize;
+
+    self_mem_move(input.bytes_mut(), from, to, len);
+    Ok(MutationResult::Mutated)
+}
+
+pub fn mutation_bytesswap<M, C, I, R>(
+    _mutator: &mut M,
+    rand: &mut R,
+    _corpus: &C,
+    input: &mut I,
+) -> Result<MutationResult, AflError>
+where
+    M: Mutator<C, I, R>,
+    C: Corpus<I, R>,
+    I: Input + HasBytesVec,
+    R: Rand,
+{
+    let size = input.bytes().len();
+    if size <= 1 {
+        return Ok(MutationResult::Skipped);
+    }
+
+    let first = rand.below(input.bytes().len() as u64 -1) as usize;
+    let second = rand.below(input.bytes().len() as u64 -1) as usize;
+    let len = rand.below((size - core::cmp::max(first, second)) as u64) as usize;
+
+    let tmp = input.bytes()[first..len].to_vec();
+    self_mem_move(input.bytes_mut(), second, first, len);
+    mem_move(input.bytes_mut(), &tmp, 0, second, len);
+    Ok(MutationResult::Mutated)
+}
+
+
+
 /// Returns the first and last diff position between the given vectors, stopping at the min len
 fn locate_diffs(this: &[u8], other: &[u8]) -> (i64, i64) {
     let mut first_diff: i64 = -1;
diff --git a/afl/src/mutators/scheduled.rs b/afl/src/mutators/scheduled.rs
index 6508033ae0..bb6f23a05d 100644
--- a/afl/src/mutators/scheduled.rs
+++ b/afl/src/mutators/scheduled.rs
@@ -207,25 +207,32 @@ where
         scheduled.add_mutation(mutation_byteinc);
         scheduled.add_mutation(mutation_bytedec);
         scheduled.add_mutation(mutation_byteneg);
+        scheduled.add_mutation(mutation_byterand);
 
-        //scheduled.add_mutation(mutation_bytesexpand);
-        //scheduled.add_mutation(mutation_bytesdelete);
-        //scheduled.add_mutation(mutation_bytesdelete);
-        //scheduled.add_mutation(mutation_bytesdelete);
-        //scheduled.add_mutation(mutation_bytesdelete);
-
-        scheduled.add_mutation(mutation_bitflip);
-        scheduled.add_mutation(mutation_bitflip);
-        scheduled.add_mutation(mutation_bitflip);
-        scheduled.add_mutation(mutation_bitflip);
-        scheduled.add_mutation(mutation_bitflip);
-        scheduled.add_mutation(mutation_bitflip);
-        scheduled.add_mutation(mutation_bitflip);
-        scheduled.add_mutation(mutation_bitflip);
-        scheduled.add_mutation(mutation_bitflip);
-        scheduled.add_mutation(mutation_bitflip);
-        scheduled.add_mutation(mutation_bitflip);
+        scheduled.add_mutation(mutation_byteadd);
+        scheduled.add_mutation(mutation_wordadd);
+        scheduled.add_mutation(mutation_dwordadd);
+        scheduled.add_mutation(mutation_qwordadd);
+        scheduled.add_mutation(mutation_byteinteresting);
+        scheduled.add_mutation(mutation_wordinteresting);
+        scheduled.add_mutation(mutation_dwordinteresting);
+        
+        scheduled.add_mutation(mutation_bytesdelete);
+        scheduled.add_mutation(mutation_bytesdelete);
+        scheduled.add_mutation(mutation_bytesdelete);
+        scheduled.add_mutation(mutation_bytesdelete);
+        scheduled.add_mutation(mutation_bytesexpand);
+        scheduled.add_mutation(mutation_bytesinsert);
+        scheduled.add_mutation(mutation_bytesrandinsert);
+        scheduled.add_mutation(mutation_bytesset);
+        scheduled.add_mutation(mutation_bytesrandset);
+        scheduled.add_mutation(mutation_bytescopy);
+        scheduled.add_mutation(mutation_bytesswap);
+    
+        // TODO dictionary and custom dictionary (redqueen etc.)
+        /*scheduled.add_mutation(mutation_bitflip);
         scheduled.add_mutation(mutation_bitflip);
+        scheduled.add_mutation(mutation_bitflip);*/
 
         scheduled.add_mutation(mutation_splice);
         HavocBytesMutator {