a friend of mine could birdie most open holes and had quite a few hole in ones with the nukeOS. the shark is good for those tomahawk throws over the trees. The other two are good in windy days and the putter was very reliable. going on 61 and playing more regular golf so thinking someone else could use these. the two nicks do not effect them, none are tree bent if you've hit a tree on a hard throw you know what I mean. wish I was still young enuff, love the sport.