I just installed the spektrum 7200bx and love it. I went from the 3g which didn't track well to this nice fbl controller.
when doing piro its fine, no bobble or bounce. but when I pitch up and down like a Yoyo it starts bouncing until I stop the piro. Its not forward/back or side to side its up and down rapidly.
The rest of the flight is perfect I can even do stationary piro's no issue its just when I push it up and down it starts to bounce.
This issue did not present itself untill I switched to the Spektrum.
The heli is a Trex 450 Sport v1. Hs5065 Servos. Align MX motor.