Hmm. Interesting, Larry. I do think that MMA contact will improve one's aikido methodology. But what I can't shake is the argument from the MMA types that really, the take-home lesson should be, "Aikido doesn't work; stop doing it!"
despite lots of claims to the contrary - this really isn't a claim I see alot of people, MMA or otherwise making. There is sometimes discussion around what aikido is good for, what it is not good for. But rarely do I see anyone but the most rabid extremist suggest that aikido shold become extinct....