I still think he has a yaw problem (CW) combined with backwards movement caused by the elevator.
He corrected, but did not fix the yaw, by doing the Tx rudder mod.
I've got all rotation trims max'd out..transmitter and pot.
To me this indicates a binding or motor issue causing yaw. Flying like that and the rudder stick held to the side will surely cause more problems and probably burn out a motor faster.
Unless I'm misreading his issues.