Just curious, I know this is a big source of debate among martial artists, but do any of you lift light, heavy, or a mix of weights? Also how much (if any) stretching do you do before and after lifting? Do you feel like it slows you down? I have lifted off and on since Jr. High, and I just started lifting modereate to heavy weights in May after taking nearly a year off. I plan to start JKD or Muay Thai as soon as the semester is over and I don't want to do anything that will slow me down or cause me to loose too much mobility. Have any of you done MA for a while and then started lifting and saw an improvement or decline in ability, speed, mobility, ect?