"What would it cost to put up a drift fence in the bad areas?" Thanks, good thought. Have considered that. All major drifting is on public road ROW, and in rocky ground for sinking necessary posts to boot; and the other half or 2/3 of the drift problem is on the road itself just outside of our private road. Like the idea of a snow fence, but with those issues, plus cost of materials and labor for a sturdy long-lasting one, plus that variation in wind direction may bring the drifts from an angle across the road itself bypassing the fence...... Haven't seen a way to make that practical as appealing as it is.
"I've used one of the 1336is... its a hoss of a SB" Thanks for the personal experience. Helpful to hear that. We are blessed with younger neighbors along our 1/3 mile of private road who will be willing to help with running the beast, adding to its practicality compared with the SnowVac.
Told my spouse that two passes with the Honda 1336, one out and one back to the house, will let her get her Subaru Outback through. Not that 1/3 mile of blowing in each direction won't take a while, but watching that YouTube video (above) showed me the Honda will process deep snow pretty darned efficiently. Faster rate of walking than I was expecting. Its use of the 24v electric motors to drive the tracks, saving engine HP entirely for the blower, is likely a significant factor. Interesting to find out how the battery charge maintenance goes during a job. They say you don't need a maintenance charger with the onboard charging system, but I will use one given how long this fellow will sit between uses.
I probably will spend less time fussing with issues than using the SnowVac, and it will be less work overall despite the appeal of that nice warm truck cab with its cushy seat (great if you can actually stay there till the job is done, but that doesn't seem overly probable.....) FYI still have not heard back from SnowVac about my side wings question, nor found even one end user's personal experience or YouTube video to give me a real idea about its quality, durability, effectiveness.