I have an Ikon butt and it does feel a tiny bit whippy on hard shots but not too bad. However the break butt feels like it has a more solid spine and also the rubber grip is better than the wood or leather grip of the pool butts I have.Thanks. Btw did you try shaft with any other butts?
I really like home stiff pool break cue butts feels and works with heavy carom balls.
Normal pool cue butts go spaghetti like when hit carom balls with faster speed..