You should all know that IMO they are machining these tanks at different locations, making the consistency different depending on where/when you bought one. The first Griffin I bought was flawless and I could wick it just like the way everyone is showing in youtube reviews by basically letting the cotton "just rest in the channels like a cup" and I was satisfied. 3mm id claptons with no need to really trim wick. Whatever cotton was left i could basically tuck it on the side or wherever i could find room and it wouldn't hinder the wicking in any way. So fast forward to a month later and i bought 2 more-a black and a stainless one and both had to be sent back. There was a malfunction in the creation of a vacuum seal somewhere bit because I couldn't take the deck apart to see inside, I couldn't really tell. Luckily the company sent me two replacements(after I showed proof of multiple wick jobs w/ejuice pouring out the afc as the end result... I even put an amusing amount of cotton once to prove it wasnt my poor wick skills) and to my delight I was able to put some builds in there that worked, however not as well as my first Griffin bought locally here in N.H.so im convinced now that at some point they used different machines, different materials or different specs(maybe a tiny difference) that was just enough to cause the rest of us who were late to the party to feel stressed out when our experience in our Griffin rta's werent as easy as the guy we saw in a YouTube tutorial. Of course this is just my take on the whole thing, but I assure you im not alone. Let me know if you had the same or similar experience w/ur Griffin