Just to say I don't have a ball with a cracked or separated core.
I was reading a post a guy was using a Hell Raiser Revenge and he was complaining it wasn't hooking on a dry lane. But his Too reckless worked great and he couldn't understand why.
He said a couple of guys who use to have proshops said it was because the core was cracked or "Shifted" in the ball.
I've heard of and seen balls with cracked and separated cores, but never of one "shifted" in a ball or that it would make a ball not hook.
I told him it was burning up on the lane, the HRR needs some oil. The Too Reckless worked because it was for a lighter condition. But he said well it worked before.