Matt, I have read your posting, and I must say I am glad to see you have not decided to quit all together. I have had simillar descisions to make due to a variety of injuries. At 50 I sometimes feel I am pushing my luck, but the level of enjoyment I gain from continuing far outways any pain I have to deal with. I simply work around injuries as they come. The health benefits that are gained within the TKD workout are excellent. Jumping, is "usually" out of the question for me also. But, there is so much more to it than that. I have been stuck at a belt level more than once, waiting to heal. Also, at this point in time, I feel good at the level I have achieved, and am not nessassarily in any hurry to promote. I am fairly certain I will promote again eventually, but that has little bearing on the now. I am learning my limits and how to heal myself and enjoying it for what it is. Good luck.