Quote Originally Posted by snegron
[...]I think that the grip would just prevent me from having to hold the RB from underneath.

What I need is a cattle prod attachment that would put a small high-voltage "fence" around the rotating back so that every time I inadvertantly nudged it one way or another before a shot, it would shock the crap out of me. Can't tell you the number of times I've got a shot lined up only to find the shutter won't fire because I've rotated the back ever so slightly. Wish there was a way to lock that.