The Reason I asked is that the Original Subtank Mini (and Many Clones) came with a Non PEEK type Insulator. And people reported that it taste like "Monkey ...".
So if you Tried everything, and things still Taste Funky, you might want to think about Replacing the Insulator.
Subtank, Subtank Mini Insulator
i doubt mine is replaceable.. trying to remove it as i type lol..
Sounds like hot spot taste to me. Pull it apart and see if the legs are glowing when you fire the coil. The coil (just the coil) should glow evenly red. If a part of the coil (or a leg) almost glows white hot, then you have a hot spot.
hotspot?? the taste of my vape taste funky, dull and hot lol