I mean I still think there is a notion of north to south decrease in upslope snow, it may just be a question of diminishing difference as you head south. Strictly anecdotally speaking, if Jay is the high water mark in orographic snows, I imagine Stowe/Smuggs get 80-90% of that, Sugarbush/MRG 45-55%, Killington 25% and areas south of there roughly 15-20% of Jay's total. Of course this is broad brushed and can differ season by season and I'm also sure that among the So VT resorts, distance from the spine plays a part but generally speaking this is always how I've thought of it/observed.