Re: Aiki and cross training
I don't really understand why this question comes up again and again? I guess my question to you, Brian, is why did you ask it? Or in a different way of asking that question, what gave you the indications that it would *not* be okay to cross train? In any art?
Now, to answer your question.
Let's dig up a bit of history. Mochizuki, Akazawa, Hikitsuchi, etc. They studied a lot of other arts, not including judo. Tenryu came from Sumo. Ueshiba watched as some of his students took TSKSR training. In fact, Ueshiba is quoted (paraphrasing here) saying something like, This is how we do it with aiki.
Let's go to current.
Ikeda sensei brings in Ushiro sensei for seminars.
Skoss sensei (plural) have backgrounds in aikido along with a lot of other arts. You can view their bios on koryu.com. (Along with ordering the new TSKSR book)
The list goes on and one both historically and presently. I actually find that it goes against Ueshiba's Aikido when one does *not* pursue other arts. Why do you think Ueshiba watched TSKSR training? He was learning, too. I have yet to see any of the old budo masters claim that they perfected their art, that they stopped learning, or that they quit looking outside their own art for progress.