I decided to give cotton wicked micro-coils one last try, and built an absolutely perfect coil: 9 tight 30 gauge wraps on a 1/16" drill bit, held them together with tweezers and torched, all wraps touching, beautiful, perfect symmetry, perfectly aligned in the head, 1.9Ω, a freakin' work of art- fires beautifully. Gently threaded a perfect organic cotton wick- not to tight, room to expand when saturated. Saturated the wick and a light flavor wick before replacing the stem.
The result: Lots of vapor, but all the flavor is not there. I compared with another EVOD with the same juice (Ahlusion's delicious Lime Cream) and a silica rebuild. The creamy sweetness and color notes are just not there with the cotton micro.
Conclusion: Either I'm doing something wrong (but doubt it, because I've really done my homework on this) or the folks who are raving about cotton micro-coils are using flavors that are so aggressive that they don't notice the difference, or these folks are just not that sensitive to flavor subtleties.
So, until I hear a reasonable suggestion for something different to try, I'm done with cotton micros.