Mariano Alafara from Detroit campaigned a Sig 1/4 scale C.W. Cub weighing in at 16lbs. He flies it - beautifully I might add - with an OS 160 twin. Part of the scale beauty was the dummy cylinders that made it look like a quad, with real valve covers. Beautiful starburst pattern. I think it was on a cover of MA. I had a chance to meet him and Dave Pinagar when they were down for Top Gun a few years ago. Very interesting guys to have over for dinner and hangar talk in the garage. Andy Levy