Ok so it's a dilemma I'm faced with and I'm sure many of you have also. I play through a fender hot rod deluxe iii, which is a loud little so and so. So loud in fact that even playing "big" rooms I've never dialled it up past 3.
So my question to you...
Amp up to the desired tone/volume and dial in at the guitar
Or
Sit the amp on its knees and wind the guitar to full (because I'm a little lazy, my sound tech is also my bassist and I'm trying to sing and don't want to add any more to my already overworked thinking sponge)