Should have a Rebop 5-DLX coming in soon which I plan on refinishing the body white and adding Nordstrand big singles and an Aggie OBP-1 w/a push-pull for active/passive.
Hey, that's
my plan!! I've had the idea to retrofit Big Singles and OBP-3s in my 4, 5 fretted & 5 fretless ReBops
as I was purchasing them over two years ago - it took a while to get the money together as every time I was there one of my "Dream Basses" popped up at an unbeatable price, but in September I ordered the Big Singles (custom in EMG-sized shells and a 5% underwind for slightly more aggressive mids and a slightly less "thick" tone) and received them a few weeks ago. Now it's just a matter of having them installed, but
that should be done as well within a few weeks as well. Now I have
motivation: to be the first TBer to post a report/sound clips of a Spector/Nordstrand/Aguilar setup.

Drop me a PM if you're interested about ordering, pricing, time-frame, etc...
In regards to the NS stuff above, wraithwrider, NS simply indicated the Ned Steinberger body design. Next is the number which indicates how many strings are on it, and then CR which means Czech Republic, and if it is labelled "FM" that means it has a figured maple body...
Slight correct as Mr. Basstard alluded to: NS-
2s are 4-strings with EMG P/J setups, NS-
4s are 4-strings but with various types of EMG soapbar pickups over the years (for years it was DCs, but it looks like Spector's switched over to TW Single/Dual-Coil model) and
then it moves up by number of strings, and least current US-built models. The Euro neck-thru basses are designated Euro4LX-Classic, which have the EMG-P/J setup and the Euro4LX TW which have the TW single/dual coils. The Euro5LXs and 6LXs have EMG-TW pups.