Hi Mike,
Whenever you notice unusual behavior please right click in-game and choose the "Submit this problem to WGT" option. When you submit a bug report in this fashion it sends along all of the data for your shot, including the exact point that your ball lies. That will help us determine if the surface is improperly mapped or not so please send in those reports when you can.
For what it's worth, and I'm paraphrasing here because I can't remember the exact quote, but I remember reading that...
"If you're on the fringe and want to make it in one, chip it. If you want to get it close and putt it again then putt it." =)