Thanks for the links SBC1.

The first link seems to only have to do with nicotine causing a stink, so I don't think that it'll contribute to our project. The second one is a bit more informative though. They mention the flavoring being very instable. I'm kind of curious to try two different batches--one with flavoring and one with just pure VG/PG and spice. It would be interesting to see if the tank with flavoring clogs more easily.

Alternatively, we could do two different tanks and leave spice out of both of them--the first one is pure PG/VG and the second one would be VG/PG and flavoring. Then we could compare the coils after vaping an entire tank. This will actually be a lot easier than having to test a spiced pen... although, to be honest, I'm rather looking forward to bringing my 1:1 and 2:1 mix to the lake for a nice long meditation session tomorrow ... in the name of science, of course.