Looking through my old notes.....
I used to have a cube 30 and kept a list of all the settings I used for various songs/bands. For songs like Brown Sugar and Start Me Up (which are both in open G, as Dogbite mentioned) I used the Brit Combo or Black Panel setting; kept the volume pretty low, about 2-3, gain up to about 7, bass down to about 4, mids down to about 2, treble up to about 7, reverb about 6-7. The tricky bit was finding the "sweet spot" on the Telecaster volume control - there's a point where it's still fairly clean, but just a touch higher and it starts to distort - you've got to find that spot just in between.
Never had a micro cube but I believe it's got quite a few of the features of the Cube 30 - just had a quick look at a picture. Try the Black Panel setting, but you may have to turn the gain down just a touch from my original estimate - I think the 7 setting was for the "Brit Combo."
Hope this is useful.
(Funnily enough, just as I was writing this, "Jumping Jack Flash" was on the radio....."
"Sometimes the beauty of music can help us all find strength to deal with all the curves life can throw us." (D. Hodge.)