I had a V-stik 60. Flew great with a GMS61 on it. Tons of power!. The wood on the airframe was not balsa but a similar soft type of wood. The landing gear was soft and I replaced it with fiberglas. Lots of nice features for the $95 I paid for it. Where else can you get a 69in winged ARF plane for that money? The wing was stout. I did consecutive full down outside loops just to test it. Did about four before I quit then I did four inside full up loops. It took it in stride. Don't know about the other planes.