CG depends on what engine you have planned.
I use a OS .70fs and it's nose heavy... I have servos & rx in stock lockation and a Futaba 1500mah ni-cad under the servo plate.

It flies great, but I can feel it's nose heavy and needed to trim some elevator to compensate.
I will play around with the battery and/or weights to get the CG more back.

Instead of messing around wih new servo locations, one guy in our club who also fly a SSE with 70 fourstroke has made a battery hatch behind the canopy.


tyhoc: That's the spirit! Very nice of you to take time and post a pic of the APG