Incidence is the angle of the wings and tail to the thrust line. In your case in line with the crankshaft of the engine. Robart and Great Planes have them. I have a Robart myself. Check to see if the wing and tail have the same incidence. If they do try putting a few washers under the top of the motor mount-to-firewall screws. This will add down thrust. If it clears it up then you are done. If not try shimming the back of the wing up a little at a time until the tendancy to climb is gone.

Flat bottom wing trainers do have a tendancy to climb under full power. This is normal due to the wings producing so much lift. Try shimming things and I feel you will do just fine. A combination may work best. This is an area for experimentation, so have at it. God luck.

Mark Shuman