Exactly. This is why some think the M is not that great. See, with the egnater (and i have spend some time playing them) like any good tube amp the tweaking is already done for you. It;s the circuit itself that was voiced by the designer. I know how this stuff goes because i built my own amps from scratch (day job is elec tech) for years and i can tell you that 95% of the mustang;s adjustment range is what a tube amp's circuitry is. In other words, they designed the circuit thru experimentation till they got it sounding great and the knobs you use to tweak it should be thought of as fine tuning. The Mustang basically has so much adjustment possibilities that it's like every incarnation of a tube amp that the designer went thu before he nailed what he was trying to accomplish, and that means even the bad stuff. The mustang has a lot more possibility to sound bad to mediocre than it does to sound as good as a great tube amp designer's final product. To the original post, his master volume on 10 with the main volume acting to set the volume verses the opposite is not something that you can say is better one way or the other. Yes, with the master down and the other volume way up it IS brighter and harsher. But there are so many ways to tweak things....consider this...if you set it like that then use the 1X12 or 2X12 cab which are super dark, that will counter the brightness and now you have a different sound altogether than may be fatter and richer. If you use one of those cabs with the master on 10 it might be much too dark. The point i am trying to make is that there are different ways to balance the tonal balance and one way may change the overall character to a surprisingly great tone you might have missed if you didn't think to use that bright brittle tone with a dark cab sim. Of that dark model used with a bright sim. Etc etc. It's why IMO so many fail to find a great tone in the mustang. I spent hours recently (not all at once but over the course of a couple weeks) tweaking the super sonic model recently and found settings that i was very happy with, where as in the past i only liked that model as a solo tone only. Now i'm using it as my main model but haven't yet finished really finding the best middle ground between several incarnations. Egnaters are great amps, especially the clean which i find worlds better than the mustang because as i have said in the past, i don't feel the mustang does pristine cleans that don't have even a hint of breaking up well at all. But i have dialed in distortion tones i feel are better than the egnater and clean up with the volume knob even better. THOSE types of cleans i feel the mustang does fantastic. Just not the fender style non driven pure clean tones.