Me too!!
Good stuff! I use a lot of dive under stuff from butterfly. Here's me diving under for a sweep or a transition into X guard. Notice muh' underpants hangin' out.
That's what it means to be extremely proficient at a move. We have a guy in our club, if he passes my guard I might as well tap out on the spot because I know he's gonna kimura me. There's no stopping it, he's an expert at it.
Using the gi ads an unmatched level of sophistication to your techniques. The game is slow and technical. You can always speed it up later when you take off the gi, but there's no substitution for technique.
Not at the moment, some of our members do, though.
Probably everything we do is recycled from some point in time, there's very little new stuff. So I'm sure it's worth looking at although I haven't yet.
JonV