He's really enjoying it so far. I hope he keeps it up. You're right about possibly becoming black belt by the time he's a teenager or at least early teens if he sticks to it. I've also signed up to GKR now too and hoping my collar bone injury will have healed better to begin as a white belt in the new year. Going to be more fun for him when it's father & son I'm sure.
RE: Youngest Hammaraxx is now a yellow belt. Congratulations little fella. Sensei Tony ...