@Sonar
My drive slopes a fair bit more than it looks, If longer rams are available and I certainly wouldn’t want to spend whatever they would cost. Pads form offcuts of scaffold boards etc is far cheaper!
The E&P system has a safety feature built in and won’t self level if the vans too uneven then it needs to be done manually. Stackable pads add any height needed but more importantly help to spread the load especially on wet grass where they will probably become essential