I'm ok with the Harrier not doing a knife edge, my Katana 40 does them great + KE loops.

Dyehard I'm using 3004's and 9001 on rudder. Your right my CG was also around 120mm with a 1100 nicad 5 cell, just in front of the throttle servo. I moved it back to the rear of the fuse and I'm ~140mm. I'll try it there then go back if need be.