Re: Best neck humbucker to compliment to 59b
My suggestion would also be to try an A4 in your 59n first. It's certainly the cheapest way to find out if you can save $70-100.
Next would be the Jazz.
Years ago my favorite neck pup was the PG, then I discovered the Demon and it quickly became my #1 choice...much better sounding than the PG ("better" is a relative term and means different things to different people). The Demon had a much more even tone curve...no boomy bass, no out-of-proportion treble, and not as aggressive sounding. It sounded so perfect to me that I had a hard time wanting to try anything else in the neck. I steered away from the Jazz because of all the hype that it was so bright. Then I saw a good deal on a used Jazz and my curiosity got the best of me. What the heck, I think it was only $40. To my surprise, it wasn't as bright as I thought. In fact it had a very even/flat tone that could be controlled by my guitar and amp to get any tone that I wanted. Extremely versatile! I tried it in a LP, SG, Strat, Tele, hollow body, and many of my custom builds. Same great results.
The Jazz is now (for the past 5-10 years) my absolute favorite neck humbucker. I still love the Demon just about as much, but the Jazz gives me everything I want and is $30 cheaper than the Demon.
Another great choice if you want clarity and versatility is the GFS Dream 180. For $30 with chrome or black cover and many other color/design choices for a few bucks more, it's hard to beat. (
https://www.guitarfetish.com/search.asp?keyword=dream+180). I've got several of those in guitars with Mincer's "Do-It-All Wiring". After trying that wiring, it has become my standard wiring in all of my builds using buckers. Thanks, Dave!!!