cardenflyer
70cc twin V2
Are you using the digital servos?
That would only help on centering. But it is a Futaba 3114.
This was the perfect plane for me to practice rifle rollers. More like Cannon rollers with the Laser and I'm running cheapo servos.
It rolls clean, just not like I expected. Nothing like the CY. Maybe it was just way to windy. I'm not sure. I'm going to the hobby store Saturday to get the stuff to finish my green one. We will see.