No flaps? Might be OK at the weight you achieved, but necessary on Andy's model. You sure have set me a challenge to beat on the one I am building.
At the weight you have hit, I think you could go to 1800 mAh 3S battery and if you get the "Jiffy compact" cells from Hobby King, save yet another ounce!
Nice, attractive model and clever decor. Good show!