I wouldnt try a loop from level flight, not on the first time anyways. I did and when my plane got to the top of the loop it stalled and ended up nosing in at full throttle. That was when I broke the gearbox mounting stick for the first time.

I suggest the first time you try it, get the plane a good ways up, give it full throttle and start going down at an angle to pick up speed, then try the loop.

But your using a 3s li-po right? Yours might have enough power to do a loop from level flight, due tot eh power increase and lower AUW.

Its been blwoing (and raining) here so I havent got to fly since last time I got my plane stuck in the tree. I bene messing with my cars but now Ive got a broke part on each one (a hub carrier on one, and a shock tower on the other) so I cant do anything with them till I get the parts in, which will be saturday. Its supposed to rain from tomorow all the way till next week tuesday, so I guess it doesnt make any difference whether their usuable.