Thanks Bones. I always liked seeing strokers more than crankers. I wanted to emulate people like Brian Voss and Earl Anthony. It just appears that for me, on the condition I am bowling on, pretending I am Mark Roth seems to work for me. I seem to post high scores that way. This is totally opposite of what works at my normal winter house. Do you experienced players vary your delivery this much or do you just successfully change balls and lines to make up for drastically different lane conditions. I don't have a video camera but I think that if i taped myself at both houses I would almost look like a different bowler.