So, I suppose I am just a hopeless tinkerer...
I went ahead and replaced the Nordstrand pickups with the Seymour Duncan pickups. Here are my impressions regarding the differences:
First; the
@Carey Nordstrand pickups are far and away most carefully constructed Jazz Bass pickups I have ever seen. Wow. Talk about doing it right. Shielding in all the right places. Stress relief on the leads. 11 out of 10 on the construction.
The SD pickups are pretty much your more standard cloth wrapped lead, exposed winding pickups. Nothing new there.
Second; the Nordstrand pickups very definitely have more of a vintage vibe about them, a bit darker, a bit more "air" in the sound. The SD pickups have more bite and are generally a lot more aggressive. For preferences, it is a bit like comparing a good Bordeaux to a good Rhone wine. I like them both for different reasons. The Nordy's just have more of that well worn jeans comfort factor going on. The SD's have more attack. IMO, preference really depends on what you are going for in your sound. If swapping them out was a little easier, I could go back and forth based on whim.
I have yet a third option that I will probably look at down the road. Could be a while, but will post up if that happens.
What a great bass.