[Elecraft] K3 output increases running PACTOR

[WO0W]

I recently began playing with PACTOR.  I notice that I adjust the power 
and mic gain to yield about 50 Watts and the output increases to75 Watts 
or more in a minuteor so.

I set power to 95 Watts in CW, then switch to USB and increase mic gain 
to yield 50 Watts, in order to avoid audio distortion.  Is this not 
agood way to operate?  Is there a better way?  Is there anything wrong 
with the TNC or rig?

73, Red