I also use the lynx leveler blocks. The most sloped spot we have to park in is our driveway. To get the unit level enough for the fridge to work I have to use 3 packages of the blocks (if I don't the fridge is tilted enough that it doesn't cool at all).
Here it is in our driveway:
So far I've only had to level the camper by about 1" at any campground.
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