I've ordered a clone K5 from FT. So it'll be a while before it gets to me. Usually takes 3 weeks for things to show up here. I'll have to use my N2 and Elf in the mean time anyway.DIY juice is fantastic. With that said, what's the saying I was going to say Rome wasn't invented in a day, but I guess it wasn't built in a day either. Coilbuilding is a great place to start....
I think a lot of folks preferred the K3 to the K5 yes. I might order the reducer, unless your N2 reappears, just so you can kind of experience a tight draw vs a more airy one. Also, clones aren't a TERRIBLE choice to try cheaply while you are trying to decide what to get that's Super Expensive. fasttech is pretty good about labeling clone vs authentic, but they're a Chinese vendor so there can be a bit of a wait..... But if you decide you don't adore the K5, you can try the others in clone version to get a sense of what you will get. I've ordered many RTA clones prior to starting to buy some originals as I figure out what I like (and can build).
Anna
I think I'll take a call on the reducer once I get the K5 and try it out. Though super airy draws aren't fun for me. I usually keep 2 holes open on the N2 and 3 on the Elf.