AFAIK the 2-pro and CL are pretty much the same circuit with the addition of the graphic eq on the 2?
Besides that point, I don't like the switches on those amps. They "boost" lows and highs by cutting mids. Not my tone. I feel like you get a lot more definition and response with more mids.
It's been a while since I had my SVT-CL, but I think I usually used positions 2 and 3 on the mid selector (450 and 880 Hz respectively) and set the mids and bass between 2 and 3 o'clock with the treble at noon. Pretty much my standard settings with tweaking to fit the room/gig/particular situation.