I would like to thank the people who replied to my last question that was for me. I now have a question for my friend. My friend has a bad right knee (a lil bit of torn cartliedge and tendinitis, i think i spelled both of them wrong lol) He also has a old lower back injury. Now, please understand that he is not a cripple lol, he can run,jump, etc etc. It just starts to hurt him if he does to much of one thing. Which is why He and I both decided that TKD and traditional Hapkido probably wouldn't be for him due to the all jumping kicks and high kicks. Would Combat hapkido be better for someone who was going to be a lil less mobile and all of there kicking will take place on the ground towards the lower body? As for the combat hapkido not having any mental training, etc, my friend meditates now alot, and he plans on moving into learning some tai chi, so I think he has alot of that covered. Thanks in advance everyone, my friend is really wanting to hear some feedback from you. Nick