I just viewed a video on the RV Snappads and how they work. A good idea, but it is not what I would use. I like more support thickness under the hydraulic struts, between the ground and the pad. I use 2-4"X4"X8" cedar post under each front strut pad and at least two 1"X 12"X12" plastic pads under the other hydraulic struts at the wheels. I have found by limiting the extension on the struts you have less motion when walking in the trailer. Also some sites take more pads to level up the trailer otherwise the level up system hydraulic struts may not have enough stroke to level the trailer.
Just my very humble opinion
2016 34RL CC; 2008 Ram Mega Cab 2500HD, 6.7L, 68RFE 6 speed, 4X4, Smarty S67