I think I'm qualified to talk about LIGHT. Please refer to my 19.2 lbs Dalton Aviation 35% Extra 260
Dalton Aviation 35% Extra 260 at 19.2 lbs
Having said that, the man has bought BOTH a DA85, and the Lanier Edge, so if you give him an advice, please tailor it to that condition. The plane will fly fine on a DA85. The extra one pound of nose weight (functional nose weight in this case) will make balancing the plane much much easier. This baby will rocket out of a hover, and as long as he exercise THROTTLE MANAGEMENT, the plane will be fine. This plane has a 1.5" Wing tube, and dual aileron setup. It'll handle the abuse just fine as long as he reinforces the firewall.
To call this plane a 50cc is a misnomer. It's more like a 60cc-75cc size (just like the EF Yak). I've had my plane next to a SD Model Yak, and this plane dwarfs it.
Wingloading in the teens are only for profiles and 60-120 size glow.