rat,
I purchased the Bad Boy kit from Ed at spadflyer.com. In answer to your question about the cuts. The inside only of the coro at the fold.Cutthe 4mm skinat the leading edge in 2 or 3 flutes. I plan to put an OS LA 40 on it. I will let you know how the plane flies. I have had other projects that havekinda put a hold on finishingthe build. Had some trouble getting the new BUHORbalanced. Must have written a measurement down incorectly. Thing was really nose heavy and caused pitch problems. That problem,some wind and cloudy, caused me to almost lose it friday morning. Got so far away Icouldn't tell if it was going or coming. Finally got it in a coming at me attitude. It seemed forever before Igot back to the field. Man, that thing was a long wayoff, probablyhalf to three quarters of a mile. Got it re-balanced and plan to try it again thisthursday or friday.