What are your goals? Different tone, economy, cachet, really really-specific pinpoint custom shaping? There's such a huge variety already out there, the vast majority of them sounding extremely similar... and it can be both a selling point or a detriment, depending on (mostly) the buyer's perspective. I personally have just about zero interest in "classic", standard, "time-tested", ordinary, "exactly duplicating the Formvar wire and bakelite blah-de-blah" retread pickups - starting back in the 1970's Bill Lawrence began improving and "flattening" response and now there are a variety of people making far better pickups
for my purposes than anything Fender or Gibson ever dreamed of (until they hired Lawrence themselves, in the 90's and 70's respectively :toothy12

. For bass, the EMG's and Alumitones do what I like, but if most of your customers want their bass to sound regular, ordinary, classic, M.O.R., etc., you could probably save a bit of coin rolling your own.
Investing in the kind of research that leads to innovation is pretty expensive. Hiring the guy who writes the ad copy for PRS might be worth it though, it's hard to top zingers like the rolls of aged Soviet Union mil-spec wire discovered in abandoned warehouses! I might have a line on some actual Egyptian sarcophagus mummy-winding wire - FO REAL! - but it's gonna cost ya....
:blob7: :cool01: :headbang:
(ROCK LIKE AN EGYPTIAN) :headbang: :cool01: :blob7: