Thanks for the reply. I probably shouldn't have even mentioned my experience. I was just interested in hearing specifically what it is about wrist grabbing that makes it ineffective, and thought it might relate. Considering my lack of ability I should have probably assumed it didn't and stuck with the question itself.
So it's just ineffective? No specific reasons why?
Sorry, it just dawned on me I'm going off-topic. Dan, if you reply to this would you please PM me?