There's no single right answer on this one.
What I have found:
If you can get the angle extreme enough so the snow will shed off easily I would try the full bite first. I have a 7 foot blade on mine so I can't get the angle too severe or the blade hits the tire.
I take the first swipe on the side that I will be pushing the snow over to. This allows me to clear over farther first and then move the rest over without as much restriction. A back blade will only move so much so far especially if the snow on the sides is already piled up.
I get hung up sometimes and have to swing over into the side to pull the heaviest mass off to the side before I lose momentum.
I end up going in reverse using the back blade to push the biggest piles off.
It's really dependent on the depth and how heavy the snow is.