I just read the following which might be helpful, but I cant vouch for the correctness.
Pickup Recommendations: http://www.highorderpickups.com
One of the really fun things about pickups is the dramatic effect that different magnets can have on their tone. Changing from one grade to another can often take a "ho-hum" bucker to "main-player" status. Different winding formulas are key, but just as important to getting the tone you're after is magnet selection. For the most "vintage" tone, I recommend AlNiCo 2 or 5 in winds from about 7.5k to 8.9k.
As the DC resistance goes up (a good relative measure of output) over 10k or so, AlNiCo can have trouble holding together and ceramic will help keep things together. It does add some "grain" to the tone though, so keep that in mind. AlNiCo 8 is interesting in that it's at once powerful, bright, and smooth but will be a bit too powerful for the vintage purist in low output winds. Due to the added cost, I don't always have AlNiCo 8 in stock.
Here are some additional thoughts to help you make a decision on what will be best for you.
7.3k - 8.0k AlNiCo 2/3/4/5 - Good range for neck pickups. Lower output equals cleaner and brighter tone so players leaning toward really clean tones should "think low". Provides good "chime" in the bridge position. AlNiCo 2 provides the warmest tone, and AlNiCo 4 provides a nice crisp top and tight semi-big bottom that's good for jazz runs. AlNiCo 3 is in between A2 and A4 in terms of tone - bright like A4 but not as punchy - sizzling like A2 but not as warm. Properly treated, AlNiCo 5 can be sweet and balanced across the board in the neck position.
7.3k - 7.5k AlNiCo 5 Even Wind - Classic '70s "T-Top" tone. The lower output doesn't drive your rig as hard as typical "PAF" winds but these can work well for vintage rock tones with a cleaner character.
7.7k - 7.8k AlNiCo 5 Asymmetric Wind - Late '60s "Patent Sticker T-Top" tone. Nice open character that stays open with volume rollback and has good chime. Goes from sweet cleans to the edge of "brown". A versatile wind that covers a ton of ground with a good boost/EQ pedal. Not technically my "PAF-type" wind, but if you've ever played an original patent sticker you know these were just as good.
8.1k - 8.9k Even Wind - Nice and smooth. More of a balanced "stereo" character than an asymmetric wind. With AlNiCo 2, provides a warm vintage tone with a hint of natural compression. Good response to pick attack, pinch harmonics, etc. With AlNiCo 5, sweet vintage tone and the rounder punch of A5 on the wound strings and brighter top end as compared to A2. Good response to pick attack, pinch harmonics, etc.
8.1k - 8.9k Asymmetric Wind - Similar to the even wind, but with a bit more edge/cut on top, a bit of low-mid emphasis, and good harmonic "swirl". Midrange emphasis generally increases with increasing resistance. Excellent "PAF" type tone. A good compromise between mids and top end is found in the 8.4-8.6k range. These are really nice/sweet with AlNiCo 2, but don't overlook a semi-degaussed A5 magnet for great vintage/classic rock tone. To add even more push/drive, consider A6 or A8.
8.1k - 8.9k AlNiCo 3 Even Wind - Open/balanced tone with more highend feel and a tighter bottom than AlNiCo 2 though with a bit less power. Good response to pick attack, pinch harmonics, etc. Has a little more "air in the tone."
8.1k - 8.9k AlNiCo 3 Asymmetric Wind - Similar to even wind, but with a bit more edge/cut on top, a bit of low-mid emphasis, and good harmonic "swirl". Not as warm as AlNiCo 2 but better for really dark guitars or when you like more highend feel and overall open character.
9.4-9.7k "Maximus" Wind - Provides enough drive for a slightly more "gainy" sound, but retains a lot of the articulation and definition of a lower output pickup. Allows pairing with higher output at the neck. As with any HighOrder pickup, the actual DC resistance varies with the magnet wire lot on hand. Bigger builders have more control over this. I wind to turns though so the tone of the pickup remains intact while the dc resistance varies within a certain range. These are built with AlNiCo 5 only!
Brown Sound - I get many requests for that certain "brown" tone. A lot of folks have been satisfied with my 8.7k asymmtric wind with AlNiCo 2 for that purpose. That said, there are many avenues to achieving the tone and most of my PAF types will get you there. Don't overlook AlNiCo 5 as a possibility nor a lower output wind. The man had tons of stuff going on (Echo, EQ/boost, re-amping, etc.) and with a proper setup an 8k-ish PAF type can do amazing things.
Page Tone - Probably the most common request, the generally accepted combination here is Jimmy's "#1" LP with the replaced bridge pickup. The pair for this would be my Late '60s Patent Sticker T-Top for the bridge and an 8.1-8.2k PAF type for the neck. Experts tell me AlNiCo 3 for the neck, but semi-degaussed A5 will probably work too.
