In 8+ inches of snow should you sweep it off your sets in a big circle or leave it alone?

I would get that much snow off my sets.

8 inches of snow is too much. If it's going to melt in the next day or two and you have the trap and bed properly winterized leave it alone. If winter and snow is there to stay you'll have to dig it out or change your set up

We sweep off any snow over 2" and I go about a 2 foot circle
Also freshen set up with either urine or gland lure.
If using waxed sand check for frozen pan cake.