I'm looking at the collection of balls I have, and I'm wanting suggestions on one/two balls to add to it. I have a (Sorry, I don't have layout info. I can get it if needed):
Reign of Fire - drilled to roll early.
Track 920A - hard arc for me (not angular) - 4000 sanded
Hy-Road - Hard Arc (slightly polished)
505A - More angular than the rest I have (going to get it polished)
I'll need a spare ball, but besides that, what kind of ball/reaction should I look into? Avg. ball speed is 15 - 15.5 at the pin deck, and not sure on my rev rate but I would say 300 rpm?