I dont like mixes on this airplane. It has little pitch coupling so I just to it by hand because at different attitudes it will be different.

The cg is not that critical if you keep it within the recamended area.

Expo always helps.

I have saved close to a pound off the airplane so it is around 23 lbs now and I could tell the difference. It flies very nice and you can really tell doing 3D stuff, because it just floats around.