Rpotts
Veteran
Kinda funny indeed. You do the 3rd U2 with left finger I suppose.
I use my right index-middle double flick. left is possible, but i'm better with my right.
Weston has a good video on how to execute that H Perm 2H.
weston's h perm vid
it's where i learned, though I had seen woner doing it before.