Interestingly enough, the gassing of the pg is never - in my experience - an issue with Grabbers or G-3s of any age, probably because their pups are closed.
But the Grabber single coil is such a sturdy consruction, nothing would kill it!
Seriously, a friend of mine wanted to borrow the Grabber so I decided to give it a setup first. It then came to me that I had put it away because I had worn it completely down over the years. So it became a full day's work, I had to level the frets a lot and file the nut.
Bridge was fine, but took some time to loosen those screws..
But the biggest issue was the electronics, all green of corrosion... Or pickguard gas? I had put a sticker in the cavity, reminded me that I had cleaned the electronics/pots in 1993. I had to replace even the shielded wire, all green too. And there was two pickguard screws that had lost their heads, just by sitting in the case for some three years without attention.
We have disgussed Grabber gassing before, and I strongly suggest thar the plastic that the pickup itself is made from produce gas.
The iffy smell some Grabber/Ripper cases have comes from that gas I believe, as I happened to remove plastic from a 70's gibson recording pickup (it was broken) a while back. While grinding down that very plastic, my workshop was filled with the very same Grabber case smell.
EDIT: My point was, if the Ripper pups are made of the same plastic, corroding that thin and very exposed wire is an easy job...