Thanks for your perspective. I'm on waiting (impatiently) list for my local LineX shop to get material and do it. There's a shortage and they provide little/no info on status and in meantime price is going up. I'm very close to telling them to bag it and move on to something else - cheaper.When I bought mine, the edges of the plastic sides were sharp. So I wrapped the contact edge with felt. Not sure if it helps though, have not had them in long enough. I only bought dualliner to prevent body warranty from being voided if rust occurred from linex, but in hindsight it won't matter if the liner scraps body paint. So if I would have known in advance, I'd have just linex'd it