How important do you think cross training in other martial arts is to your development as a martial artist? I think it's critical, because it's one of the only ways to check your unconscious assumptions and find out what you really don't know. I put a lot of my thoughts about it in this blog post
http://budobum.blogspot.com/2016/08/cross-training.html
What do you think? Is cross training important? Do you do it?