By preserve I meant to learn something which has been handed on from past generations.Maybe it isnt the right word considering I might not understand its true meaning. I just want to learn the right way should I have something of such meaning passed onto me. In which you suggest studying karate as a "side art" and maybe "mixing" the two. This doesnt sound very Daito Ryu to me. Although I swear I have seen a senior at the Aikijujutsu Dojo practicing empty hand kata.