Hi Nick,
The first flight was on the forward edge of the recommended CG. After adding 3 oz. to the tail it was closer to the center of the recommended GC. Shifting the battery back under the the servo tray should get it to the right spot.

Alpha11 is right. This is one of the best flying small pattern planes around. Knife-edge requires very little rudder and rolls are very axial.

The only weak spot may be the landing gear. It seems to bend very easy. CF gear would be nice.

Joe