I guess I nailed it with my first build in this atomizer as I'm very please with it. The coiling mandrel I used just fit into the slots, 3 or 3.5mm I guess and I used 28 gauge Ti wire, 7 or 8 spaced wraps if I'm correct. It was slightly tricky getting the 28 to hold under the screws but round nosed pliers helped to wrap the Ti wire to about 300 degrees and hold it in place while tightening the screws. I meant to get washers for this atomizer and never got around to it. I'm getting very good flavor and vapor production from this atomizer although my build seems to use a lot of liquid. On the Koopor Mini this atomizer looks to be right at home and I've been running the coil at 460 F* in both hard and norm modes. I have already suggested this atomizer to friends.

These have already been put to use and do a decent job. A metal bristled brush for cleaning would be an added attraction if included in the packaging.

Four builds and I'm a competent coil build and it still leaks. Don't both with these.

Wicking has been interesting using the single part chimney when not using the wick holding ring. Reminds me of Fogger and Orchid builds. The liquid flow control was removed after my first build and hasn't been used since although that first build was intended for a 90% VG mix, it worked just didn't work so well with the thick liquid. The wick holding ring limits coil diameter unless you're willing to trim your wicks which has really never appealed to me. The velocity style deck is all that I have used so far and is easy to build on with SS wire, likely Ti as well, I've had a little concern of possibly cutting softer wires although I did manage a Ni 200 28 gauge build that I could only fire with a DNA 200 device. IMHO there's better out there for the money although most lack the dual build deck option which sold me on this atomizer, doubt I'll buy another.

I do some machining and a light at the point I'm cutting metal helps a bunch with my aging eyes. The contrast allowed by the amber/warm white light has helped when scribing on ink. It cheap so I didn't expect much and that's just what I got.