The Diamond Shield can be removed by applying some heat, use a hair dryer or heat gun, and then carefully peeling it off. Then use a good cleaner to remove the sticky residue and mildew. After that a good coat of wax unless you intend to redo it...
FR had their vendor replace mine, under warranty, at the last FROG Rally as it was bubbling, peeling, and had "stuff" between it and the paint. If I take it off I won't be replacing it...
2022 R-Pod RP-192
2021 F-150 4X2 SuperCrew Lariat 502A, 3.5L Powerboost Hybrid, 3.55 gears, 7.2KW Pro Power, 1,840# Cargo, 7,000# Tow
It is better to have too much truck than to have too much trailer.