Well, it's definitely a hijack, because none of those will work for horstausmforst. But that's okay because we're all Radius/Saber guys anyway!
So we've all run into these pups.
The original IBZUSA's that had no "C" designation seemed like they had 2 versions. The oldest ones seemed to sound glassier, like a C1. They had black cloth wrap underneath. Then shortly thereafter they got a little duller sounding, like a C2 or HS2. Those have the standard milky-clear tape. But you know I never measured them to check for differences. Plus I couldn't tell if there were magnet strength differences anyway.
My favorite is the C1 because it's the "vintage strattiest" of them all, and has good highs. I feel like the C2 is just duller because they tried to get a little more output out of it. But still, they all sound great when run as single coils. (which is what the Jem single is) So I like to put a coil cut on them. The C3 is touted as a middle pickup with split humbuckers. I prefer it as a neck single. It's wound to around 7.6k or so. That's a little hotter than a Fender Texas Special, and personally I'd rather have a split C1/2 than a C3 in the middle. You can also wire the C1/2 to split in the 2 and 4 position but go back to hum cancelling in position 3 in case you want to solo on that position or whatever.
You can also wire a variable coil bleed to the bottom coil to retain some of the hum cancelling benefit, and some of the tonal improvement of running it as a single. Heck you could also set it where you want it, then measure the resistance and hardwire a resistor from the bottom coil to ground. As you can see, I like messing with them, but they're not my first choice. I just won't go around spending $40 each to replace them all.
I've got about 10-12 of them in various positions so that would get costly, and they don't sell for much. It's easier to put coil cuts on them.