two great points to consider

the offending model has carbon fibre pushrods, and was built tighter than the better flying model, and the rods are supported in both planes....

the better flying model has about 200 flights on it and the new one about 25

the rudder seems to be centered, I haven't put a straight edge on it recently, but would suspect that a carefuel second check is in order and check the centerv line reference to the offset in the motor as well..

this will be done tonight

thanks

bob