Truck/RV levellers?

If i know the ground type on which we are expecting to camp, i make a decision on whether to take the levelr blocks or not. I have the 10 or 12 pack of orange plastic mesh blocks. Many times i have used all the blocks to try to level the rig. I have small RV bubble levels glued on the drivers rear and rear corners on the camper to check my work. My ace in the hole is I always take my jack block anyway. What is that? A stack of two 3/4" exterior grade plywood, cut to 12"x12" and glued and screwed together to form a platform for the jack on snow, sand, or mud. Since it's solid with no holes, it works in a variety of circumstances and fills in the gaps of the orange plastic blocks if the ground is not solid.
I do pick up lots of flotsam and jetsam within the interstices of the mesh which is annoying when you try to restack them. Also, mine are six years old and look like they've been thru the warz. I'm always trying to situate the camper as to have the front end slightly elevated for a better night's sleep. I've read on here it's the not having too much fore-to-aft angle that's important for proper fridge working and not the side-to-side angle. So, sometimes if we are leaning to the side a bit the Dometic ammonia exchange fridge won't complain.
jefe