Hello Phalco,
With the 32 SX I thought I had balanced the plane properly at 70 mm. However, I now realize that the plane was not pitching slighltly forward as is required when i held it on my two fingers.
The airplane was almost horizontal with a slight pitch to the back. I guess in my head I did not want to add weight. When I flew the airplane, on takeoff it pitched up and in the air it wanted to gain altitude.