I'm an on-mountain rep for Rossi and I'll see if I can get a number for you on what the factory tune might be. I'll post it here as soon as I get it, assuming that I do get one.
That said, I totally agree with RossiSmash and PhilPug. It sounds like you're comfortable enough with tuning that I would bet that you probably have a feel for what tunes have worked best for you on what types of skis. I don't think there's anything unusual about the Soul 7 that would lead one to tune that ski any differently from how they would ski any other ski in that category.
I, for instance, basically ski all of my "carving" type skis with a .75 base and 3-degree side. I ski my "all-around" (aka soft snow) skis with a 1-degree base and a 2-degree side. When my Soul 7's arrive, I'll have my trusted shop (shameless plug for Teton Village Sports at Jackson Hole) set them up with a 1 and 2.
Those are my own general guidelines based on my own experience over time. I don't see any reason to change that for this particular ski, given the several times I've skied the Soul 7 in lots of different conditions.
Also, I agree with those guys about not exactly trusting the factory tune. This is not manufacturer-specific. I realize it seems like a pain to tell someone who's buying a brand new pair of skis that they should ALSO get a top-drawer tune, but I think it's good advice. A really good initial tune adds maybe 5-10% to the cost of a new ski. I think that's worth it.
Have fun on your new Soul 7's.