Since we are on the subject of eyesight, I am curious how many people can actually see the shot column. In my teens and early 20's my eyesight was better than 20/20. I used to buy Imperial Magnum, 1-1/2 # 4 for duck hunting. Try as I might, I could never see the shot. A .22 bullet on the other hand, if the light was ok, was clearly visible. I am long past my teens but my distance vision is still fairly close to 20/20 and watching over the shoulder of a beginner, I still cannot see the shot string which would be most helpful in telling a beginner what to correct . We have a club member who claims to see the shot string even when standing 50+ feet off to the side of our 5-stand range. His diagnosis of a missed shot is always a stopped gun and not enough lead. Invariably this is likely true but you could be sitting if front of your TV, make that prediction, and be right 85% of the time. Now just to get everyone's hackles up, it doesn't matter if you stop your gun, you only need to be pointing it in the right place when you pull the trigger.