ORIGINAL: OzMo
ORIGINAL: MinnFlyer
It's really used more for cars.
VERY FUNNY
( could be true though cuz I know zilch about cars)
With gliders a brake will stop the rotation of the prop when power is off allowing a FOLDING prop to fold. Soft brake option is less stressful on the prop roots as is soft start.
If you are using a NONFOLDING prop let it spin for less drag. (won't be a big difference though)
Minnflyer was being serious. Usually the only r/c that uses brakes on an esc is cars.