Loops have never been an issue with mine - originally powered by an Evolution 52 - full throttle resulted in nearly a 45 degree up line without any up elevator. As a tail dragger it needed nearly 16 oz. of nose weight (lead, multiple Rx batteries and a heavy hub) to balance. I'm converting it back to a tri-cycle gear and hopefully eliminate the wasted weight - then an OS 46 FX.

So, back to the thread topic (duh) I think that the weight loss and clipped wings will neutralize themselves.