Im using the E-flite Park 480. I dont run geared motors, so I dont know much about them. If you plan on using the pull/pull. Balance everything, and adjust the motor so that the CG is in the right place. I think this is why some people are having problems getting the CG in the correct space. The motor mounts arent all that great, so you have to cut and trim them so that they are positioned correctly for the CG to line up. Not sure about the geared set-up.

Fishing the cables is a little tricky. Its not like a big bird where you can reach back there to get them. A long flexible carbon rod with a hook on the end will help lots. Cross them in the fuselage, the exit holes seem to work just fine.