@RevDrucifer if you want to take it a step further, throw a 12AU7 (or 12AY7, I forgot) in V3, while leaving the other tubes stock.
It will seriously change the red channel to something Gary Moore-ish. You will lose the thumping chugs though, so only do this if you want to make it more of a hard rock machine, opposed to modern metal.
For my tastes, the amp is a bit too much on the bright side, so I never run the Presence over 11 'o clock, even with a thicker/smoother sounding cab.