There's a few things confusing me about this:
LW-ML1S is the code for the set that has one humbucker and two single coils, not two humbuckers...
When they're new, they have stickers on the back saying whether they are bridge or neck. I'm wondering what happened to the stickers. I *think* my bridge one had a yellow heatshrink band on the cable, but I'd have to open the guitar to check, I may well be wrong.
The 18V models I'm familiar with had a molded Seymour Duncan logo, not a silver printed logo. These look like the newer 9V pickups to me, but maybe they changed the cosmetics before they changed the internals, someone else may know?
Was this all sealed when you got it?
You won't be able to measure the DC resistance of the coil as there's no connection between the coil and the outside world, you're only seeing the arse end of the preamp.
The HM LW Bridge pickup is an unmistakeable and brutal sound. I think you'll be uncomfortably aware if you've got them swapped.
(Examples of stickers:
http://media.photobucket.com/image/recent/Sprinter92/Rampage/IMG_2584.jpg
http://medias.audiofanzine.com/imag...n-lw-hmet-livewire-metal-humbucker-492983.jpg)