Re Aimpoint, as a former LPGA teacher and coach, and as a golfer, I have taken Aimpoint instruction and have greatly improved my green reading because of it. People who make negative comments typically demonstrate their ignorance of the facts. Using Aimpoint properly (including doing your homework to train yourself to read slope correctly) is faster and more accurate (scientifically proven) than not using it. If players are slow or misread, it is not because of Aimpoint but because human beings aren't perfect.