The wings are really tough. I accedentally had the wind blow the door on the garage shut on the wing. A balsa wing would have been destroyed but the VF has a minor crease in it. The 66" edge is a really nice flier. Its a very well made arf. I will replace it when necessary. Other than using the nice sig tailwheel and adding support wires on the tail I used what was in the kit.
Id gladly dump some of my 40 size arfs for another VF.