Hi daboosailing
Let me clarify on my previous post that I had the flaperons in extreme throw conditions !!! ( 65+ degrees) and throttle set to half or more !! See pics below. Under normal conditions and using the flapperons normally 10 to 20 degrees and 1/4 throttle or less you will not see these large nose pitches. Yes down flaps generate lift but huge amounts of down flaps and excessive speeds with no elevator opposition will cause the ailerons to act similar to an elevator and they will try to lift the trailing edge of the wing similar to an elevator lifting the rear of the plane, thus causing the pitch down of the nose. Also the SSE has a very wide wing chord over 12" on a 24" wing half and very large ailerons, wings with a smaller chord and narrower ailerons should not pitch as much. At full deflection my ailerons are trying to act like a speed brake. Please excuse the long winded explanation. This was the easiest way I could think of to explain it and I am sure one of the moderators will tell me if I got too far off base.

Dale