no doubt, every course has different speeds even though the "green speed" terms are the same and even then, they seem to differ slightly depending on whatever, it is still a mystery to me at times. Just for grins, I have been writing down all of my putting adventures trying to get some kind of handle on what percentage I need to apply for level, slight uphill, slight downhill, major uphill putts, etc. for all four 18 hole courses. I am already on page 2 of legal size paper and they vary from day to day, even sometimes, hole to hole on the same course. All four courses differ in speeds and I have concluded that I will go mad trying to figure out exactly what force to use at any one time on any one course. The good news is that I am happy to be within 5 feet of the hole at any given time. What I really have trouble with is the really long putts on the tournament speed greens. Say I have an 85 ft. flat putt, if I use my "calculations" for the shorter distances, I end up 35 ft. or more beyond the hole. It would seem that the longer the putt, the HARDER you would have to hit it, but it is just the opposite, you have to hit the ball softer to go farther. This just seem to defy logic. OH WELL, one must deal with what one is dealt with.