Personally, I like the motion I see out of the Track 9 series balls. I would go with a 916 All Terrain. Saw a couple of people throw them on our Kegel patterns, and it's pretty strong.

2nd both responses. I have a 916AT that is beautifully smooth on heavy, but still has a strong drive through the pocket. If you don't like asymmetric cores, the Pursuit-S, Omen, or even an Arson (with the right surface) could be your match.

Also, the 912T from Track looks like a beast. No one around here has one yet, but I'm sure I'll see a bunch when tourneys start up next month.

Which ever had the lowest RG and highest diff and Asym.