A last (?) answer in the name of clarity...
That comment did come across as possibly derogatory, but I thought I would give you the benefit of the doubt. I hope it’s come across that way.
My comment was not derogatory for Throbak... A decade ago, an old friend of mine, local luthier-winder (now retired but for whom I still work),
was crying on the phone with me. Reason: some troll on the Web had posted destructive sentences about his products. So I'd certainly not do the same against another artisan.
Jon Gundry drives a small company, have bought expensive tools and source specific materials. He HAS to sell his products at boutique prices. He has apparently decided to justify these prices by sharing information on the Net. The bet seems to be that educated musicians will accept to put more money on pickups because they understand their cost.
It's a totally respectable attitude and I find Throbak vids really well done.
Duncan is obviously a bigger company working on different principles when it comes to costs, shared informations and... advertising: there's logically a capitalization on what Seymour did for famous artists and not as much volontee to educate customers, potentially because many of them don't care about science behind pickups. it was my case when I was 18, after all: I did see Duncan or DiMarzio or Lawrence as famous names, making me sure that their pickups were the ones to have.
But it doesn't deny the presence of work and knowledge behind the curtain @ Duncan corp. At least as much work and knowledge than what Jon has at disposal, albeit used differently. That was my peaceful point.
The measurements have to capture real information that allow an accurate reproduction to be made, that is the real unknown. I don’t doubt Jim Wagner makes great pickups, I just don’t know if it stands up to a side by side comparison with the real thing, they might sound better, but of course that’s not the same.
Jim Wagner winds fine pickups like Tim Mills and hundreds of other pickups makers. Each has his personality, impacting the design of pickups, sourcing of materials, building process etc. The result is that many brands have a recognizable "voice" or at least a defined sonic footprint.
Hence my tendency to take the idea of "accurate reproduction" with a (respectful) grain of salt : a P.A.F. clone made with contemporary materials by someone who wasn't "there" @ the Gibson plant always risks to sound unlike "the real thing", even if/when it has been made with the same tools and should be strictly identical
in theory.
Paradoxically, it might even be necessary to
adapt the original pickups recipes to contemporary materials in order to obtain the
same sound than yesteryears... And I write this after having compared (more than once) vintage transducers to modern clones with lab gear. ;-)
I’m game if you are.
To keep it short and the most objective possible, I'll reply with an external example.
I've still here a Line6 Variax 500, bought brand new in 2003.
When Line6 engineers tested vintage instruments to capture their voice, they didn't dissect these guitars. Lab measurements were done with guitars as they were, if memory serves me. Each instrument was treated as a black box.
And Line 6 did a pretty good job: they cracked the code of each vintage instrument without opening it - even if the sonic results are limited by the hardware used to build Variax guitars. Once again, the "voice" inherent to the product shapes the final tone...
FWIW: another answer from before my morning coffee, a Sunday morning. The house is still asleep so I could ramble a bit... <:0x