The bottom is checker boards (blue and white). I have one on order too. Check the LHS. Great Planes has some great pictures of it in a monthly dealer flyer.

I'm going to try a OS 91FX first. See what it does.

I don't understand the nose weight question. I'm guessing, however if you fly that plane nose heavy or even neutral to the recommended CG it may take away from some of the 3D potential.