Kwanjang
3rd Black Belt
You'll get no disagreement from me...but deadening the nerves in your shins by rolling bottles on them, punching hard surfaces to fuse your knuckles into "Super knuckles"...not neccessary.
opne can gert stronger joints from a comprehensive weight training program...one will also hit harder, become faster, potentially have more flexibility (if they train that), have denser bones and better anaerobic endurance too.
I'd rather spend time hittin ghte heavy bag and lifting weights as my conditioning. I get more bang for my buck and less possibly deleterious side effects.
peace,
Erik
I am completely with you on the heavybag and weight training!