martialartist92

I will be testing for my black belt in October. So far, I have been conditioning my hand using these boards http://umab.com/index.php (I've been using the black board, which is the hardest) I would like to condition my hand for hammerfist, but really don't know what the best way to go about it is. So far what I've been doing is striking the board over and over again. I'm also interested in elbow conditioning for elbow strike. Any tips? Thanks.