Terry, glad to see you are learning well and fast on how to plow such a long laneway.
My laneway is a private dirt road that is 3.1km long. Verry long and steep hills, and many sharp turns. Not the usual set up!
Where I live, we could have our share of snow as well. The way I have been doing my plowing is by using a rear mount forward traveling snow blower. One pass is all I need. Traction is of the utter most importance. Good ice chains a basic pre-requisite as you can imagine! I used to plow with a heavy half ton pick up, with chains on all four wheels, and a 7.5 foot good old fisher plow. I killed the transmission one day pushing lots of snow uphill... Can't beat the tractor!
With your already acquired experience, you have probably realized that your machine could be a little on the light side, when using both front and rear blades.
When I get little snow, I use a rear scraper blade. They are not meant for pushing much snow. your front blade is on the contrary very well adapted to this task. The more snow to plow, the sharper the angle on your blade. Always better to start plowing when the road base is solidly frozen.
If you want to put chains in the front, it will help a lot to stay on track, but keep in mind that if you use the 4x4, then you will exhert more tension/pressure on the front axel and all its gears and components. You have to be gentle, and easy, otherwise something could get damaged. With my experience, if I could stay in rear wheel mode, the better. I use differential lock a lot, and proves to be a saver time after time. Pushing snow with the front blade makes the front end lighter. Only trial and error will dictate the best approach in the many varying conditions you will encounter in a single snow season. Snow that has been pushed hardens like a rock very quickly. Therefore, best to allways complete your run each time you go out.
The worst condition you will encounter, will be melting snow!! Angle your blade to the max, and widen without delay cause it will turn into steel after freezing takes over...
Good luck, and happy TRACTORING!:salute:!