Thanks for the help. The stall tests were done with rates on and whilst flying didn't feel like it had too much movement. The 'harrier' was obviously done with rates off.
Thought I might have to move the C of G back after reading all the threads many pages ago...........how could I do this??....... if not just adding weight to the rear. I thought of moving the rudder servos to the rear under the elevator servos. At present I have the two rudder servos ganged together in a tray in the main bay. With the elevator servos at the rear I'm not sure two more would fit, with the servo heads. Has anyone done this....do you have any pictures (im a visual learner...)

Many thanks for your help so far
Phil.