re: Another shoutout for Jeff at Fret Shack/Coil Shack. Brand new set of humbuckers for my LP

Thank you for the kind words and continued patronage. So glad I can be of service.

Here's a cut and paste from my shop's Facebook page relative to Carson's pickups ...

The origin of non-black humbucker bobbins is said to date to the late 1950s as a result of a black pigment shortage on the part of Gibson's butyrate (plastic) bobbin supplier. When it asked the Kalamazoo brass if they had to have black bobbins the Gibson bosses said not really, because color was a moot point - Gibson humbuckers were always under metal shielding caps and unseen by the player or audiences. So white (unpigmented) bobbins were among those shipped to Gibson to meet contract and production deadlines. Bulk boxes of unpigmented bobbins were poured into the bobbin bins, and when pickup winders reached in for a pair, sometimes they came up with two black bobbins, sometimes one black and one white, and sometimes two whites. The random schemes became public when influential Les Paul players like Jeff Beck started taking the metal caps off their humbuckers to boost high end and presence. White bobbins would also discolor to a warm and attractive golden yellow over time, making them incredibly desirable among players for their rareness and visual appeal. So much that Dimarzio has a trademark - actually a legally vague color-specific appearance description - pertaining to "double cream" humbuckers . Here are some Coil Shack handwound non-pigmented that discolored to a warm and attractive golden yellow "spicy PAF" replicas, fresh out of the potting wax.