I always found that pictures sometimes made it worse than it actually looks.. Personally if I purchased it new I would be fine with it and would hope that it would fall under OEM warranty if it did de-laminate. The only concern I have is that the seller hid it from you. I know it's not the...
Go to places like https://stratosphereparts.com/ buy a husk, look around for the hardware and electronics. You can usually get the guitar at new price or little over. If you are frugal you can probably get it cheaper going this route.
I would keep it, because I know guitar electronics and know how to change out my own pickups.
To be honest that deal about removing the EMG's and then send him the EMG's. The seller will refund you 450-500... Not sure what local Luthiers would charge for a pickup change, but it sounds like he...
One of the push/pull should be a boost. Also check and make sure the wires didnt' pull out of your battery box.
The Volumes will coil split.
The tones Push/Pull, bridge is to select which coil you want of the pickup, the neck is for the boost.
I own 50's and 60's neck Les Pauls. The 50
I have both 50's and 60's necks. The only time I can tell is when I play 2013 Traditional with the baseball 50's neck. Even coming from the other 50's neck it's noticeable.
Gibson did a few changes in 2015 and wasn't received very well. That doesn't mean they are bad guitars. There are some years that had Les Paul HP's (High Performance) models.
There was a changing of the guard in 2018 (?) so some 2019 are from the previous CEO era and later 2019 are from the...