In a K4 atleast, turning your engine off as you are stalling at the top of a rope/hammerhead whatever you wanna call it, sure does help you flip it over faster and get a gun solution. Yeah it’s gamey but it wins fights. It’s not something you should do every turn or chance you get but it can and has worked very well for a lot of folks. I can’t prove it as I don’t have the YouTube filming skills. But I know the difference of fighting torque vs engine off and being able to flip to either side no problems whatsoever.