Being a left handed golfer, I have not previously had the opportunity to try so many different clubhead and shaft combinations until I got to experience "the wall". We must have tried 8-10 different shafts until we finally found "my twin". I was surprised to discover what a difference it makes when you finally find the shaft that was meant for you. I started with the hybrids. I am now hitting it closer with my hybrids than I am with my wedges. So irons are next. Leif is very professional. He won't sell you something that's not better than what you already have. Leif's experience shows as he takes you through the process in an organized and analytical way. Very worthwhile experience.