Re: Billy Duffy Gretsch pickups
You might be able to ask them "Give me what Billy Duffy had put in his White Falcon in the 80s." They may or may not still have the "recipe" on hand.
From Billy:
"Over time I’ve modified my various White Falcons to personalise the sound. I changed the pickups initially in the ‘80s because the output was so feeble, so Seymour Duncan helped me – I’ve been working with him since 1986. I wanted to keep all of the high end “chime” of a Gretsch, but with the lower end chunk of a Les Paul. Seymour Duncan installed new pickups in my two ‘70s White Falcons. Nowadays, the TV Jones pickups you get through Gretsch do the same thing just fine.”