tgs300 -- Why don't you go to your local pro shop and get his advice? At your son's age, selection of ball weight can be tough. Without seeing him, I'd guess 11 pounds, but the pro can show him various weights, let him feel them, and put them in a ball sling and let him swing them. Correct weight might be 10 lbs, might be 12 lbs. And you're going to have to get the ball drilled somewhere. Any of the low end reactive resin balls (or even urethane) would be great for his age. Your pro shop might have a special for fall season going. Don't waste your money by going above entry level, though. -- JohnP