Quick update! I found a vintage Bisonic that was retrofitted into a 1970 Guild Jetstar bass that originally had a 70's Guild Humbucker. To get lower action with a Fender P-bass bridge, they removed the raised chrome mounting ring and used a home made flat bezel out of thin pickguard material, probably long ago in the 80's...So here I am left with a working 60's Bisonic missing the chrome ring! So on a chance, I called Guild parts department and asked if the chrome ring from a new reissue could be bought separate...They are identical to the originals, I have some new pickups and the bezel is a perfect match. When the rep heard what I wanted it for, he said, yeah, we have lots of trashed damaged during shipping basses and I can get you one no problem, he even refused any sort of payment and sent it to 2-day air at Guild's expense! I did tell him I bought one of the Newark Street reissue Starfires a few years ago....All I had to do was glue the ring he separated from a new pickup onto my vintage one, perfect fit. I used a model cement called Goo, similar to Gorilla glue. I told the guy I would pay the favor forward and pass something like a guitar part onto someone else....good to know info anyone modifying a Startfire and may need some oddball part...BTW, I restored the Jetstar with a pair of the re-issue Bisonics and it too sounds fantastic, I put the repaired vintage one in my '67 that had one new and one old pickup, now its all original....