Figured I should post this here as well, since it may be of x-interest...
In any case, I've been experimenting with my new NectarNail Enail. Ive tried out ti nails, quartz nails, and now (duh) the domeless.com ceramic nail. And it is a pretty awesome combo I may add!
Now, my specific coil is a rebranded "NectarNail" 15.8mm (16) flat-coil type heater. As such it fits perfectly under the ceramic cup of the nail. Now, I should note that I had to use their optional "non slotted" (doesnt have a slot for a carb in the nail dish, which is fail anyway IMO since all carb caps have a carb hole already) since it doesnt come with the threaded adjustable nut.
And why is that? Of course it would be ideal to use it, since the nut would be a slick way to secure the flat coil to the underside of the cup. Sadly the threading for said ceramic nut makes it just slightly ever too large to fit my coil around. As such, I had to use the non-threaded version and domeless' optional cermaic washer/boro tube "kit" to rig something up. After all was said and put together, though, its quite solid. And it WORKS!
The flavor is on par with quarts as far as I can tell, and the ceramic has the added bonus of behaving like a titanium nail, with its large surface area and more efficient vaporization of the material. Hopefully the downsides to ceramic (i.e. cracking) will be reduced or eliminated due to the fact that I'm never torching it (which would unevenly heat the piece and probably over-heat it in the process).
As far as I am concerned, other than the possibility of it breaking do to a fall or something, this seems to be the perfect compromise between flavor and performance.
One other note, I noticed that I have to bump my Enail controller up quite a bit over what I set it at for titanium, in order to get the same temp at the nail surface, as measured by my IR probe. I'm assuming this has to do with the physical properties of each material. In any case, I set it to about 775-777 °F in order to get about 610 °F on the nail surface (which I find to be ideal).