Oh my god, do no one read the OP?
1: The "change button to L/R/Z" suggestion is there.
2: "And please, don't come here saying "This is known already etc. etc.", unless the thing you're thinking about is executed the same way this is. This is not really completely new, it's just a new way to pivot a lot quickly." Angelic stepping is not executed the exact same way IIRC.
Btw, I'm not very active at this, so for all I care, this thread can die... but if people still feel like discussing it, go ahead.