Hi JRoony, it's harder for your son to find a good shaft length because he's in between sizes of kids and adults. Also, used clubs aren't a bad idea considering he's still growing and finding out what kind of golfer he is. Only problem: it'll probably be difficult to find a decent set of handmedowns that works for him. Honestly, He will gain some height and be in full sized clubs by next season so toughing it out might be a good option as well. Personally I would do that, you'll save him some trouble fiddling between different clubs and yourself a few bucks.