Yesterday I posted some info in the cleaning secrets sticky on using PVA glue cleaning on trashed LPs for digitizing, have a look at it before responding please.
Anyhow I commented that it does not reduce distortion from damage/wear, but I thought why not try it on an LP I know well and that is not totally trashed just to see for sure, I have no problems with this method at all so why not.
Anyhow Grime of the Century (I mean crime) was given the treatment and then carfully listened to, and guess what, there actually is less distortion from wear effects, in fact it is quite noticeable on some of the high impact vocals on "Rudy"which tend to rough up a lot.
So why? I can only surmise at this point that the glue lifts the damaged vinyl fragments from the groove that lie adjacent to the original modulation, allowing for better tracking, but it might be nothing of a sort too.....but to my ears it is definitely better. I just had not really noticed before as I had not done any solid before/after tests on LPs I knew really well.
This cleaning method works really well, but if you decide to try proceed with caution on an old dud LP first for practice.