Remember too that " lightweight" is not always what you think it's going to be. I usually hit heavier irons better and with more speed because of muscle activation. The irons I was looking at had 125 gram S+ flex shafts that had me a bit concerned. Tonite at work I grabbed a demo with that weight shaft and my clubhead speed was 4 -5 mph faster than the sub 100 gram Nippon. And more accurate