This is pretty typical although it does vary some depending upon the style of music, room dynamics, instrument choice, etc.
I play this kind of music: Classic Rock, Blues, Funk, Reggae
I am using this kind of cab: GB Uber 212 or Aguilar DB115
Preamp gain- 11:00
Preamp volume- 11:00
Low- 12:30
Mid- 1:00
Mid Freq- 10:00
High- 10:00
LF boost (on/off)- depends on which instrument I use
Mid scoop (on/off)- sometimes on, sometimes off
HF attack (on/off)- off
Edit: I thought I remembered seeing this:
Shuttle 6.0 settings question.