3" to the RUDDER??? Man, I thought I was going big when I add 1 1/2" to mine! Did you use the factory rod to connect the elevator halves, or did you do something different?
ORIGINAL: SigFan
I've built 2, both with TT 91's. The first I built stock except for clipping the wing. The second i added 3" to the rudder and 1" to the elevator. Both flew great, i still have the second. They tend to build a little tail heavy, so build accordingly. Good luck.