Well, it is a vendor mistake that sent me a PT3 instead of a PT2. I already had the airflow control base ready to rock once the PT2 arrived. The shipping to send it back plus the shipping to first get it may very well add up to more than just ordering another PT2 would cost. I've got a boatload of Protank/Evod coils and I don't want to "diversify" into more kanger coils, so I'm just debating on whether or not it is worthwhile to keep this PT3 (which so many people seem to hate) or not.
There are lots of places that say the PT3 is backwards compatible, just not the PT3 heads. Like take this thread for example:
http://www.e-cigarette-forum.com/forum/clearomizers/501718-kanger-protank-2-3-coil-questions.html
Clearly at least a few people had no issues using single coil heads in the PT3.
Either way, if I open up the package, the deal is sealed. So it is something of a conundrum
Take a base off the EVOD, and put a single coil on it, and try that up in a PT3 and see if it fits.