I tried it and I seem to balance way behind, about 2" worth, about where the tube is located.

This is without battery, but i would have to add a full pound to get it on 6.75".

So I am OK for wingtube as a CG location but it is at around 8" - it is also at 40% between the LE and the TE.

I'm sure someone on RCU has this plane and might be able to provide the exact value.

Thanks.