[1bwana1]

I fly a DW YAK and it is a great, neutral flying plane. A plane doesn't change the way it flies for no reason. Something has changed on your plane. That twitchy servo could be doing things in the air. Hitech is great about customer service. I have never had them charge for a repair of any kind.

Check your elevator to make sure that it hasn't cracked in the thin area that joins the elevator halves. I have had this happen. Also check the motor mount area to make sure your motor is not moving in flight. We just went through a record heat wave in San Diego. I have seen Depron warp, and or lose it's stiffness when left in very hot cars. Check to see if everything is still straight, and as ridged as it used to be. Also check to see if your hinge tape is still holding as it should. excessive heat can cause it to degrade as well.