Yeah, I notice that too, when mine showed up. I posted about it in the Vape Mail thread.
These must have been old stock. They are the earlier ones with the V1
RBA (tiny juice holes), but they can be modified. They also have the
earlier OCC pre-built coils. They are the 2 piece OCC coils. A twist
with a crescent wrench will separate the case, and they can be rebuilt
easier than the newer, one piece coils. I doubt it will be necessary,
having the RBA’s but I’ll stash them just in case, never know.
A little drilling will be in order. Like you said, still worth it at that price though.
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Whichever wire has the least resistance should be the path of current and the resistance measured for TC. As I understand it, the core should carry the electrical load, and the wrap mostly just acts as a heatsink.