GoeKeli - I agree with CNSASS; the elevator throw of 40 mm may be a bit much for your first flights. I had no problem with the recommended aileron and rudder settings, but it was a little sensitive on the elevator, especially with no exponential dialed in.
With respect to the CG, mine came off the board at 6 5/8", so I left it alone and have had no problems. I'm sure it can be safely flown (by an experienced flyer) with the CG further aft, but I only have about 30 flights on the plane, so I'm still getting used to it... it's my first "big" plane.