Drifter, despite previous discussions on this point, you still appear to have an unrealistic outlook on how loud surrounds should be. As Randy also just pointed out, you should rely on the auto-calibration done by Audyssey or others(or even a carefully done manual calibration)to have set the relative loudness between the mains and surrounds where it should be. No "tweaking" of this is necessary, and your present setting for your M80s is too low and unbalances the calibration. The mains are supposed to be prominent most of the time(this isn't "overpowering" the surrounds)and this is the result when the calibration is correct.
