center ball is not center ball, at least not to me...I was practicing my long staight in shots (cue ball and object ball about 4 diamonds apart, corner to corner pocket) and was having trouble making them. A friend stood behind me and told me that I was not hitting center ball. I was actually hitting a little off to the right. So then I tried to line up the shot and when I thought I was center, I would move my tip to the left about half a tip and I started making the shot. I don't have a problem making cut shots, I'm thinking I've already made the adjustment for those shots without realizing it...anyone else have this problem?