This is inventive and looks very effective. I haven't tried it it, but I plan to very soon. I never pass with double underhooks, and I actually get kind of irritated when people try this pass on me. I'm not sure why. It's probably some deep seated psychological issue from my childhood. I'm working through things, but for now, this will help as a quick fix.
Seriously, I hate that pass almost as much as I hate the standing guard pass. Don't get me started.