I use to spar regularly with some shotokan karatemen, powerful is proably the most fitting word. Most martial artists seem to have a lot of "also"s, I've studied Nippon Ketsugo Ryu Jujutsu (as was meantioned in root node), Goju-ryu Karatedo, Sei-fu Ryu Aikijujutsu, and Tai-chi Quan...and that's if I don't include seminars. Indeed when I wrote this I was most focused on Nippon Ketsugo Ryu, but now I am most seriously praticing the other 3 meantioned arts.
I like the old saying: "If one is willing to teach, I will learn"
"Cogito cogito ergo cogito sum - I think that I think, therefore I think that I am." Ambrose Bierce