RE: WM Groovy 50 3D
Do reinforce the gear area. I tested mine with 5"+ cg position and landed not hard but not feather where most gears would not budge but this one folded simply because of the angle ( if it was straight down, it would have survived).
The covering job is less and par but cowl is superbly painted.
BTW, it is an electric conversion with Axi 4120/18 brushless motor. When my proper battery comes back from FMA, I'll do more testing with proper cg.