I'd try Soft Brake first. It stops the prop a bit more gently.Also, the Default list says that Cutoff Voltage is 1 (2.8V). I'd consider changing that to match your battery pack. Or not too much less than what your pack is.
I have a electric setup on a Nobler and the prop keeps spinning after the timer shuts off. It slowly spins and does not allow me to glide the plane in. I read a thread that explains my exact dilemma but need more info. It’s a BA ESC with. FM-9 timer. The BA is basically a mantis. Looking at another thread the Mantis has a default of breaking off. Do I need to change it to “On” in order to stop the prop? Or “Soft Break”?Thanks
Another thing that will KILL the glide on a flapped stunter is having "up flap" at "neutral elevator". Steve