I was struggling to hit say 5,4 etc
irons until i went to the range the other night and tried going down the shaft a couple of inches and only doing say a 3/4 swing, up to eleven o'clock position, and i could not believe how far and how straight my shots went.So i tried it on the course and my shots were 100% improvement.So i told the lad with me to try it and he was amazed how better and easier it was to hit good shots.So it doesnt always pay to hit as hard as you can.Try it.