I just came from a rehearsal where I tried blend of NAM profiles I created and it sounds amazing and different than I expected. For rhythm sound blend of hi and low gain works great. For boost sound low gain just makes the sound worse. I didn't expect that but when you think about it it makes sense. Boost sound without low gain amp gives all Wats or dB for just that amp sound. I mean, when you do run through two amps the moment you turn one down you loose few dB. When you turn off one of two NAM profiles, you are still playing through the same (amount of) power amp and speakers. You learn something every rehearsal