Here's some things that I've discovered about plowing snow. I was using a 500cc Honda ATV but the same thing applies to small tractors.(I have a 30hp Kioti 4x4 with hydrostatic drive)
The blade on my Honda is designed pretty much like the Bxpanded plow.(It happens to be a Moose Plow) I really like the Moose plow and that is why I'm interested in the Bx.
Here's some thoughts on plowing.
1. If the driveway is too steep or the snows to deep, raise the plow. Don't try to take the whole driveway in one pass.
2. Plow down hill wherever possible. If you have to keep the blade up to get to the top, then do it. It's unbelievable how much you can do with gravity helping.
3. A lot of plowing problems have to do with the consistency of the snow. If it's the first or last snows of the year where you get a lot of slush and the snow is heavy, it's harder to move. But if it's that nice powder that comes mid-winter, it'll flow like water in front of the blade. What I'm getting at here is tire chains would work better in the first and last snows whereas mid-winter you probably wouldn't need them.
4. Don't worry too much about running into something that won't move under/in the snow. Those two springs on the back of the blade let the blade tip forward and relieves the strain on things.
During the summer, I would angle my ATV blade and grade my 3/4 minus gravel driveway.(200+ yards) I couldn't believe how well it did. I'm pretty sure the Bx would do the same. You just have to use a little common sense on how to set your tractor bucket so that it wouldn't dig in and create a hole.
Hope this helps.