The other day while at my daughters jazz performance (she plays standup except for a few numbers where she uses my Bruce Johnson fretless and Gibson Supreme)there was a lad there that had a black TBIV with 2 Rickenbacker 4001 toaster pickups and chrome tuners and bridge. He said his father had done the modification. The toasters were perfectly placed with no sign of woodwork filler. He said the neck pup was original but the bridge pup had been rewound and then an all glossy black refin. I asked him to try it out and ...yeah it sounded real good. Real quiet not like my stock TBIV. After leaving I thought I have to try and catch up with this kid again and take a picture.
Sounds interesting. I hope you can get a pic!
Toasters sound great. Beefy, especially considering it's a 6 pole guitar pickup.
Beefy, but not overwound or distorted.