I got single 3mm ID kanthan A1 .75 wicked just like you said if I go past 65Watt pulled it burns. It's not the wicking trust me. What I'm trying to say is the Griffin can't handle Vaping it like the Boreas,Alleria, crown,Ect. That's what I'm getting at. Griffin you have to do this you have to do that and I still can't get the type of Vape I can get off other Attys. That's all.Sounds like wicking then. You want that cotton just barely inside the ring, I'll even stuff then pull it out until its just barely staying inside. Also, 3mm ID if possible, some thick wire that doesn't work on the 22mm but it's ideal. And, while I don't have the 25mm it's basically the same thing just with a bigger tank surrounding the 25mm, all the important stuff is the same, I think they increased the chamber on the 25mm by 1mm but the deck is identical.