After 17 years with a above ground pool I have started having issues with moles recently. I think I have the mole issue under control but after a puncture last fall I will be installing a new liner soon. This time I will be installing the cove foam and have been thinking about installing a Gorilla pad or armor pad on the sand first. Any added protection under the liner is what I want. I have seen a lot of reviews but wondering if anyone has real world experience with these liner protection pads?