I just got an order of unflavored 18mg PG from Madvapes. Ordered it specifically after reading through this thread a bit... I don't know if I got a bad batch or what - there's decent TH, but the vapor production is very low. Also seems to dissipate very quickly - as in, take a huge hit and immediately blow out a very thin, almost nonexistent wispy cloud. However, the 18mg cherry cola I got from them at the same time is like just about every other fluid I've gotten from them or others in these regards... I ended up cutting some of the unflavored with VG (2 to 1 ratio, the VG has no nic or flavor added) and that bumped the vapor up to "normal" levels, but the TH seems fairly close.
Anyone else experience low vapor output from unflavored "supposedly pure" PG?
BTW, I'm liking the unflavored "taste" otherwise
