Charlest: I was just looking for genralizations, sorry. The reason I couldn't just kick it up to a better ball is because of what I'm using, so I guess that is important. All right, right now I use an X Factor (original) and an X Factor Deuce (I don't know my exact PAP location so I don't know the exact drillings). The X Factor is drilled pin under the ring with both the Pin and RAD (which is kicked out near the PAL area) about 4 1/2" away (again, not sure if this is exact, but it's pretty close). I was leaving too many 10 and 4 pins with this ball, so my coach and I made the decision to give it some extra polish, which really made it carry better, but its a lot more sensitive to oil now. The Deuce is drilled pin outside ring (2 o'clock) about 4 inches from the PAP and the MB is kicked out halfway in between the thumb and PAL area 5" from the PAP (ditto on exactness) box finish. The problem is, the X Factor is inconsistent on the backend when there is carrydown, and the Deuce tends to burn up in the front of the lane. I can't just grab a ball with the correct surface because I can't get that same core anymore. I checked out the Ace in the shop yesterday and unfortunately it is a lightweight ball, so I'm not going to get it.