Sorry, I forget that you have problems with hands. And the Jujitsu I mention used hands a lot! Well, my personal opinion is TKD is the best option for now. And dun worry about blocking! I saw two awesome match before. 1. A guy kumite, standing on one leg while the other leg is ever ready to dish out damage. 2. I saw a guy in a real competition who use his leg to block, then using the same leg to kick out devastatingly! This is the most awesome move I have ever seen. Keypoint is: SPEED! and experience (know your opponent's moves) Good luck!!