As someone that cut their teeth on and carried revolvers and now teach autos one slight criticism from this Youtube video. The same thumb over thumb aka high thumb hold so popular with autos theses days is not really the best for wheelguns. Shooters using that grip have a real risk of getting their support thumb burnt from some of the gases that exit the sides at the front of the cylinder. The smaller the revolver the more risk you run.
They don't call a revolver grip a revolver grip for nothing. Just sayin!
I was going to say the same thing. Cool video though.