Well i Officialy did it my biggest and have flown it 3 times, this would be my GP extra .40 ARF with a OS 91FX MA 13X8, i glassed both top and bottom on the wing, added carbon fiber struts to the stab and backed up the firewall by glassing it as well, I also glassed where the wing mount bolts tighten down on the wing.
Needless to say its totaly insane, weighs in at 7lbs wet. Comes in HOT!! but doesn't drop a wing at all, couldnt be happier