I'm guess your a lower speed bowler? These heavy oil "high hooking" matte balls tend to have no energy left for the backend for strokers. I'f you want something thats gonna hook "a lot" or a low rev low speed player I would go with any high hooking pearl ball. Cell Pearl, Mutant Cell Pearl, Wicked Siege is polished I'm pretty sure. They're a ton of stuff out there.

Not neccesarily polished just something that does a better job of saving up its energy, the original cell definitely did that better than most of the heavy oil balls especially the modern unpolished ones.

 Thanks for the help guys. Any other good balls besides the pearl I should try? Or is rotogip pretty much the beat choice

 I throw slow and also had problems with mutant cell.I throw a negative pin motiv cruel now and it really rips up on backend. With a agressive core and a hybird cover (solid\pearl). It goes long and really pops on the backend,check out some reviews and videos here it maybe what your looking for. Good luck