It is a very easy thing to do that really sets your tone ready for mix:
After the amp, add a mid focus EQ and put HP FREQ:20% HP Q:0% LP FREQ:92% GAIN 0-14% (depends on the amp)
It will give you a much better tone for all amps except: DOOM, ACOUSTIC, JCM 800(Old).
Try it, and let me know what you think.