Just bumping this up to date. I ordered a pair of Artec sidewinders last week. They came from Hong Kong. The seller is Edenguitarparts on Ebay if you wish to take a gander.
Both pickups came with the magnets incorrectly configured. Both pickups had one pair of magnets facing North - North and one pair facing South-South (pointing in the way on one side, pointing out the way on the other side). At least they were consistent with their goofing, and spraying one side of the magnet with white paint helped a lot.
I'm not sure about the internal wiring but Artec (credit where it is grudgingly due) put a lot of wire between each pickup bobbin, so you can split the cables and rewire if necessary. I might wire in coil taps at some point as these pickups will be going in a Jazz bass and I would quite like to get *some* of the original tone some of the time.
However, these pickups cost me £36 if you include shipping and took just over a week to ship. When I asked Eden guitars as to when I might receive my pickups, they offered me the tracking number without asking for the additional $2 they usually charge for such information. Anything to keep feedback positive I wager, as they are flooding the place with cheap guitar parts that no doubt need some (in)expert work to get them to function fully.
Electra/Westone Club #19, Guild Club #27 (snuck in with a Dearmond).