I,m purchashing a Browning Mirco Midas 3 for my son it has 10" draw adjustment 18" -28" so that sould keep him in a bow for a while.....
If your son is like my other son 13 and all arms and legs and has a 28" draw see if you cann' t find a good used one by matthews hoyt martin....
Martin has the Z-cams with the most ajustablity- my oldest is shooting an old lynx that I had put those on and a 50# top end. Have him feel it so tht it is right for him also./
thanks