I kind of did the first coil with my usual 28g 7wraps 2mm 1.2 ohms. Kind of followed Phils instructions on the wick, cut it like he did and pushed it in like I thought I knew what I was doing and got a lot of dry hits and pore wicking. Pulled the wick and used a little less cotton and cut the tails shorter. More dry hits. Opened it up to take a look and the tails were to short, not hitting the deck. Pushed them down against the side of the deck like on a KFL because that's the only way they would reach the deck. Worked better but still not good.
I resorted to talking to the guys on the K4 thread and one of the gurus over there said to fill the coil full of cotton, like almost enough to pull the coil out of place full. That is real hard to do with KGD! I did up my cotton some and I left the chamber ring off. Bent the wick down and cut it so it would reach the deck with extra length. Pulled the cotton up and installed the ring, pulled the wick up at the coil and folded the ends of the wick down the inside of the ring, away from the deck, till it was on the deck. That's how I'm vaping it now and it's working good. I haven't had a dry hit since! I'm thinking that, after years of building KFLs and R91s, I instinctively pushed the wick against the side of the deck. It needs to be away from the deck on the K4 it seems and the tails on the wick have to be fluffed up. I blew on them before I tucked them in.
I hope that helps. Figured I'd share my follies with you so maybe you'll have better luck!
Oh, and the juice holes are closer to the inside on this one so that's why I put the wick down the side of the ring not the deck.
