Yes

you defeated moving the rod in at the servo arm one hole by moving the pushrod out at the throttle for not much net change and there is still to much throw. To increase mechancal advantage at the servo you move the pushrod further from the servo And at the throttle you move it closer to the carb. To decrease mechanical advantage you put the rod closer to the servo and at the carb move it further from the carb.

Consider trying this:

Attach the pushrod at the servo to the middle hole.
Attach the pushrod at the carb to the hole farthest out.
Set throttle subtrim to %0
Set Hi and Lo endpoints to %100
Turn Tx and Rx on
Pull throttle down all the way
Push throttle trim switch down (the same direction you moved the throttle) and hold untill it stops beeping.
Now adjust the clevis or easy/just untill throttle barrel is just completely closed
Open the throttle all the way up, It should be fairly close and can be adjusted with small amounts of high endpoint.
Close throttle all the way down and it should return to just completely closed
Push throttle trim switch 'up'(same direction as full throttle) and hold a few seconds and the throttle barrel will open to a cracked position that can be set with subtrim.

John