Go44dad posted:CaCo, I'm just guessing from your posts about your son's size and age that core strength work is a good base to build. Son probably needs time to grow into his body.
I would agree with that 100%. He's 5'10 and 160#'s and will turn 14 next August. A year and a half ago he was 4'10 and 145#'s....his body has changed just a tiny bit.