My friend and I are new pilots. We both have Nexstars. On my friends Nexstar maiden flight, his plane kept banking to the right. The instructor had the trim all the way to the left and could barely keep the plane on track with FULL left aileron. The plane landed without incident. After carefull inspection my friend was told to return the wing and get a new one. He did get a new wing and the plane can now fly straight (with some left aileron trim though).

My Nexstar also requires left aileron trim to fly straight.

With left aileron trim both planes fly straight 'hands off' but on takeoff, as soon as they lift off the ground they both bank to the right.

If your plane is real bad you should exchange your wing for a new wing.