Rubber bands are more forgiving on a rough landing. Easier to replace rubber bands instead of repairing the fuselage sides. Of course I did build one with wing bolts that came in from the bottom of the fuselage. Used paper wetted with Elmers glue wrapped around a waxed paper coated 3/4 dowel for inner guides. Kind of cool to see her with just the wing and no other signs of bolts!!
Funny, the prototype flew with an OS .15 FP. Possible would fly with a .10!! That little jewel Saito will allow you to hover!!!
Bob Harris