Re: Antiquity Surfer va Antiquity Mustang (neck)
6.6K seems high to me for a Mustang pickup. And 6.5K for a Strat is likely to be an early '60's Strat tone (when Strats were their darkest – and many will say "best – sounding).
Mustang pickups should be well under 8,000 turns (closer to 7,500 than to 8,000, actually), and Strat pickups of the era when Mustangs were produced, about the same. With 42 gauge wire, that should be under 6K, although there was variation. The Strat pickups that are most likely to have ended up landing at 6.5K or so are early '60s Strat pickups.
Basically, the difference between the Duncan Mustang and Duncan Strat pickups you mentioned is probably more about stagger than anything else. But a "real" '60s Mustang pickup would usually sound more clear than either (though it might actually be higher output, as the magnets will not have been degaussed, as they are on the Antiquity pickups).
FWIW, I have a pair of Duo-Sonic II pickups from '65, IIRC. I consider them irreplaceable pickups. I have them in the bridge and middle positions of my '94 MIJ '50s reissue Strat. The cool thing about owning an original Duo-Sonic pickup set is that one of them is RW/RP, because the Duo-Sonic's pickups were wired in series (while the Mustang's were wired in parallel). I have a switch in my Strat that puts the two Duo-Sonic pickups in series, as they were originally intended to be wired. They sound great, singly or in series. Given that these aren't considered "desirable" pickups, so they aren't all that expensive, you might consider shopping for the "real deal" which will still have close to full gauss magnets, as opposed to a degaussed Duncan.
