My dynaflite spit came out at 12.5 pounds with an OS 1.08 and retracts. Robart used to make a set specifically for this model that have the right angle and retract outward. Split flaps would be nice as it is a real floater on landing. Flies very easy. I added about 6 oz. to the nose but my servos are up front. The 1.08 is plenty of power and with it inverted only a part of the muffler sticks out. YOu must add wing fillets to get the look right. Mine is covered in coverite with paint. If I did it over again I would sheet all the surfaces and use fiberglass then paint as the aircraft can easily hande and 1 or 2 extra pounds.

snyder_man