I've ordered from 101 Vape many times and they're great. They have great prices and ship quickly. As far as coils, I've done a 28G micro that comes in at 1.5 or a little higher. I like a warmer vape but I keep it as close to 1.5 as I can, that way if I shift toppers, I can put it on my Vamo or my MVP since it's small. Wicking is a little trickier but there are good videos on Youtube that can show you how it's done. It's very flexible regarding wicking options. I used cotton and the flavor is fantastic. I ordered a GT and I hope it's as good a topper. I'm also looking at the TOBH atty, yeah a dripper, but it's got some really neat features, I might get to dripping after all.