I also split the difference and CG is set at 13.5cm. It flies great at this setting but I may experiment a little later on. As far as surfaces I will have to get back to you on precise measurments. I set mine to get maximum throw on high rate and about half of that throw on low rate. I use about 30% expo on all rates and surfaces. I usually do all my airplanes this way, Might not be proper but has always worked for me. I havent tried the high rates yet, so it is possible that full deflection might be too much. I would say use the throws in the booklet and you should be just fine.

With my receiver battery being slightly heavier I could not get it to mount up front as suggested. Once I moved it back it balanced out perfectly at the 13.5cm mark and did not require any extra weights.

I think you will be very happy with this planes performance. I cant wait to get it back in the air.

I am considering changing the upper to lower wing control rod, it seems to be a little weak and flexible. Might go with a carbon tube setup. I already installed a bigger tail wheel and it tracks beautifully on a grass runway.