I'd recommend you get a bow that can grow with him some as his draw length grows. Find out how much he can actually pull weight wise at his draw if possible, you may find he can use a much heavier at 28" bow than you think and that way he can get a lot more years out of the bow. The Maddog, Sheepeater, Black Rhino, etc are all good bows. What exactly is the goal for the bow? Is it just for shooting in the backyard? Do you hope for him to hunt with it down the line? How much time you can get out of the bow could make a price decision easier.