My bridge is 17mm, which is what I think SX was using on their five string 62 Jazz basses at the time. But I kind of wish I went with a 17.5 just so it better matched my Stingrays and my L-2500. But, really, it's not a major difference and I can't say I notice it once I've been playing this parts Jazz for a few minutes.
But the sound, wow. The pickups have a great vintage tone and the Audere preamp is quite transparent so you really get to hear the pickups. This parts bass looks pretty ugly, but it sounds wonderful. I really like these pickups.
Did you put them in yourself? Did you have to order custom spacing?