The viticella hybrids can often reach a pretty fair size but to compare Betty Corning to SAC is a bit of an exaggeration - there is no comparison IME. She just doesn't come anywhere close to putting on the girth and volume of foliar growth that SAC does. Most of my viticellas scramble through shrubs and some rather smallish shrubs at that. My SAC consumes a large wrought iron trellis, some 10' of fence in both directions, scrambles over the top of a large shrub and this season has leapt into a nearby apple tree - none of my viticellas have ever come close to that kind of rampant growth.

And in my experience, they would prefer a bit more sun than just a couple of hours, but the degree of flowering would depend on how filtered the shade may be.