Cool video... my friend used to mow the grass with his. Lol
Think he was sponsored by Airtronics during his competitions.
He'd fly his just like you do.
Too expensive for me when a mistake is made
But yeah... IMO servo speed is not as critical in a crawler as it is for an RC helicopter.
I'm sure stunt helicopters still require a respectable amount torque.
But it's definitely got to be a really fast servo to do what you're doing.
My Savox 1230 isn't even close .16/60* @ 6.0v = 500 oz-in ( 36 kg-cm )
My Savox 2290 fairs better .13/60* @ 7.4v = 695 oz-in ( 50.04 kg-cm )
but neither hold a candle to the speeds you utilize.
But an RC crawler is not an rc helicopter and share little in common.
My bad on the drones... I forgot they don't use servos.
Guess you can tell I don't own one !? Lol