I just flew a few batteries with my new set of insane 0716 MMW motors, and i must say the difference with stock e011 ones is huge. Didn't fly brushless models yet, and i'm not going to say that this is even close to that, but with these motors you can feel very comfortable flying acro and doing flips and rolls
Yesterday i ordered 2 sets more of those insane 0716 motors. They're not cheap, by the way, not at all, but there are no cheap alternatives, as far as i know. Don't forget the discounts from MMW web!!