I know I’ve gotten into it on the Vinyl Engine forum with members there, and it seems to me that here in the States we had a generally higher grade of record than many in Europe did. I got in a huge tiff with about a dozen of them because I swore I only had one record out of 600 that was non-concentric . The hole wasn’t in the middle, and even that one was only slight. And that I only had one or two that were warped. They flew off in disbelief and called me a liar! So, for what it’s worth, I seem to have had very good luck with the quality of most all of my vinyl, even used. Sure I’ve got my share of scratched, and poorly handled records, but as far as poor craftsmanship, no real issues.
I had about a dozen records I sprayed with Groove Glide back in about ‘79 or ‘80, and it didn’t seem to make much difference at the time. But here we are near 40 years later and it really helped preserve the records that were treated. I don’t know that the product is the same as it was back then? It’s not packaged as it was then, and I haven’t tried any since.
Russell