Experiment this season. WD40 v. RejeX. Sprayed the box with WD40 and applied RejeX in the chute. Either the WD40 did not adhere to the box or it just doesn't work. With any wetter snow the box has a coating of snow adhering between it and the auger. Chute is free of any snow and still black mirror shiny from the RejeX. Snow in the box is not an issue. Constipated chute would be. Final opinion will be determined after the first real wet, slushy snowfall.
Use RejeX, a micro polymer "wax" that binds to the surface on the sailboat hull. Outside of a deep shine, the water beads up like a very high quality wax and requires minimal effort to remove any end of season water scum that adheres below the waterline. Requires a clean, dry, and not too warm surface for max adherence and durability.