malcolm woodcock 1

I've just managed to stall my WOT4 e in doing some serious damage. I couldn't get the c of g right (70mm from leading edge at root). I had added as much lead as I could to the front end in the cowling but still could not get it further forward than 80mm. Rang Ripmax and they suggested pushing the c of g back to 90mm and adding 90 grams of lead, which is less than I used originally. Can someone explain how moving the c of g back arbitrally is going to work. This is the second shoddy piece of kit I've had from them where I can't make there models work, the first was the Foamy WOT4 which had an esc rated at 30 amps but it drue 33 amps at peak in the system. How do I avoid this happening again.

Got one of the new foamie WOT4, only trouble is the undercart plastic base plate keeps coming off no matter how gentle the landing. It's a bit rough where I fly and if I catch the slightest rut or imperfection off comes the undercart . Any suggestion for a cure.