hmm thats interesting to know. I'm skeptical myself about the bed liner but i tested it in a small area it seems durable. its not the spray on kind if that makes a difference. I've found that with multiple thick coats its seems pretty resistant to scratching. heres a short vid of me trying to scratch it with a grade 8 bolt

but time will tell, i plan on pulling it over the pit every week or so to check everything. thanks for the heads up on the proper way to undercoat, i will definetly do that on my fc.
no update until tomorrow, i have to work a double and do some laundry before work