I've been putting together a larger version something ~.25 - .30 sized should come in about the 3lb mark with heavy gear. I'd love to pull off the same stunt but unfortunately balsa/ply strength doesn't scale with size LOL! The slow descent and low mass of the little speed 400 bird make spin-touch-n-go's a zero damage event. Try lumping on a few pounds... guess I'll just have to find out for myself.