I just weighed the model and I think I'm closer to 12 pounds, probably 12+ using the bathroom scale method..I really do need to buy an accurate scale.... The Saito 180 is almost 10oz heavier than the OS120, and I have an onboard glow driver with a 1400ma battery pack and seperate switch harness. Probably an extra pound total. I also added some wood to the firewall and forward fuselage structure as shown in the build pics. Add to that the two extra aileron servos (four total) and the weight adds up. We are at 2800' msl here also which adds to the inflight speed....it is a really nice flying model though, and if you could keep it within the 9-10 pound range an OS 120 two stroke should be ample power...I already had the Saito so was trying to find a suitable Pitts, which at the time meant either a Great Planes or a Cermark.

I'll see if I can find any reference to wing incidence in the instructions....

Randy