if you have time to do these other things, just train more PK!!!!
lol j/k, more power to ya man, i like your idea of "supplemental training", im currently a red belt in TKD, i haven't been to clases in a while, but i plan to take alot of different martial arts thru out my entire life as long as i am able, once i finally have the time to go back and get my black in that, im gonna move onto Aikido, then hopefully some form of judo or kung fu.