I'm not worried about getting banged around-over 30 yrs in MA, Kyokushin,Hakko-Ryu,Hapkido,and that's before I got seriously into Hung Kuen. I'm pushin 50, but I still bang, and I let my students throw me, with or without mats, makes no differnce. Why let them have all the fun?
(ok, I might have exagerrated a bit on that "makes no differnce" part!)

I'm just looking for the most efficient, and nastiest grappling skills. I don't want to rollaround on the ground like a dog for ten minutes, I just want to bust'em up, bring'em down, ground 'n pound, or break whatever I need to and get up and go. Really, the nastiest sheite possible.
"Old age and treachery will overcome youth and vigour"