I've been having a lot of fun lately with the Brit mode on my Roadster. I really disliked the brit mode at first, but after much tweaking I have come to like the mode for AC/DC lower gain type tones.
50 watts
Tube Rectifier
Gain- Maxed
Treble- 1:30
Mids- 3:00
Bass-1:30
Presence- 9:00