Already a thread started on this in the Polaris Pro Ride section.
I have 77 miles on my 2012 SBA so far with only 7" of snow out there. My sled has 2" track so will be geared lower I believe but it hauls great. Found a nice blown over ditch to test the side hilling a bit and the deep snow handling. Absolutely awsome. Very easy to man handle and do what you want with ease.
If you're ditch banging up there, it will be fine but for any type of hill and 2-3 ft of snow, you are way better off with a 155.Even switched out my daughters and wife this year the floatation is just night and day.