This is a bit off topic but I toasted some e liquid recently at 9.5W set on the istick with this tank. I blame my istick. Liquid was 50/50 PG/VG so it should be wicking just fine. My istick has been acting wonky lately. I was scorching a lot of liquids in my Lemo, so I thought i was wicking poorly....but now I think the pbusardo power mgmt issues he brought out are exaggerated on my istick. I'm convinced I'm getting more than the average voltage spiking with it. I've been using it non stop since November, and vaping while charging. So, I don't doubt that I have been hard on it.
Got a new ipv Mini 2 last night and am amazed at the difference. I can run it at 16.5W and it seems comparable to 10 on the istick....only a lot smoother, and more even temperature vapor.
You're not the only one, if that's any consolation to you... Same thing happened to somebody else; I read about it in another thread. Sudden voltage spikes. Yikes.