As you can see from above my mesh gets very distorted if I rotate the neck bone one way on the Z axsis.
Also if I rotate the bone below the neck, the part of the mesh below that bone distorts also.
Do you have any ideas why this is happening. I know my mesh where the neck and head joins is a little messy, but the neck is fine and the middle as well. I am attaching the .blend file.
I am trying to keep the neck the same shape as it is now, just so you know, in case anyone gets it to work
Frank Bones (neck modded).blend (975 KB)