I only use non master volume amps in the Axe FX (Plexi 100, Deluxe Verb, Deluxe Tweed and AC30 mainly). I read that 10 on the master volume control is actually the equivalent to "11" on the real amps, and a setting of 9 is more accurate to the real thing. For those of you using non master volume amps, do you find it better to leave the master wide open on 10, or pull it back to 9. If I pull it back to 9 and increase the input drive by 1, is that basically doing this same thing? Also, I read that changing the preamp tube type to "long plate" is suggested for non-master volume amps. What's the reasoning behind this? I am preferring the long plate sound, it seems a bit more open and clear, and I'm wondering if others are finding the same thing.