Hi!
We have a 400 foot driveway on a 30 degree incline. We do it in quarters with our sears snow blower. Starting at the top, We go down the right side returning up the middle. Then we go down the left side returning up the middle in the undone portion. On to the next segment same proceedure.
This works best for us. If it is extra cold and windy we switch operators and have a good supply of hot chocolate on hand and a fire in the fire place.