I lost about 50 pounds a few years ago( only have put a few of them back on) and it really didn't affect much of my game if anything I hit a bit shorter now, could also mean I am getting older. The thing that really played with my swing was weight lifting. I got a little bit bulkier in the upper body and little less flexiable. I made a few adjustments and still occasionaly get it on the short stuff. I guess my thought on it is that its a slow enough process where you can make adjustments as needed during the weightloss. Besides it gives you a great excuse to hit the course a little more often. Jerry