The new Falcon III has lite ply fuselage sides. In the kit that I had, the parts were mashed out, ...oh sorry, "die cut". Some of the parts needed trimming to fit together. The older Falcon 56 used truss system on the fuselage as will as the slab sides. Tail surfaces are shaped slightly different I believe, but still built up. My kit went together very well, even with the so-so diecutting. I think there is provisions in the plans for rubberband mounting of the wing, but I think If you crisscross the rubberbands across the top of the wing the canopy will not fit. Without the canopy, plane looks like every other Stik, and it will NOT be a Falcon.
I fly mine with a OS 32F and a 11-4 prop. Has more vertical than I can see. Very very nice flying plane. Lands fairly fast so you have to fly it in.
I also have the plans for a Falcon 56. Looks very similar and aside from the previously mentioned fuselage width, the plane looks just about the same.
If I every write mine off, I'd go through the trouble of building another one. I'd increase the control surfaces slightly and build it lighter.