I got by for several years with the leveling blocks. Just note that the orange waffle type Lynx do break up if you use them on sand or soft surfaces. I have gone thru 4 sets of them since RV'ing in Florida on the sand.
I switched to the yellow solid ones. And yes I have had a couple of them break too on the sand but I was trying to lift the MH higher than they can accommodate.
IMHO I have found that if you need more than a 3 block high lift it's time to switch to a different CG site. Any leveling needing more than that lift breaks the blocks and IMHO I won't park/pay for a site that unlevel to begin with!