Remember, that the EQ and FX you set in the mixer are recorded into your software (STP), and that's the end of it. If you use the software mixers in STP, you can always go back and change the FX, EQ, etc. So it makes more sense to do your sound FX, sweetening, EQ, reverb, mixing, etc, inside your software, and just use the external hardware as an I/O device, sending the raw signal to your recording software. Just something to think about.