Re: yet another annoying cross training q
Take the judo. It's not that the Danzan ryu won't have effective technique...but I don't believe they use the randori system of judo...and the biggest benefit there will be the randori. If you practice a cooperative model martial art, and you want a secondary art, look for something either historically related or something that offers a non-cooperative model. In my opinion, of course. Both would be sweet...but I don't think you'll find both.