Alright, my experiences thus far (using a rewicked Aerotank/ PT3 head) for Virus (since my normal Virus device is getting a bath as we speak dirty dirty little REO that it is!) is on 18ga blunt syringe tip (I believe its 1.65mm if you want technicalities), 10 wraps of 28ga Kanthal, smooshed together into a micro gives me a 1.3 ohm reading on the Vamo (my DMM was being fritzy this morning, so I'm not sure the EXACT ohms, but another device verifies it at 1.3 ohms as well)....
Anyhow... what I did, since the PT3 heads are initially Dual coils (and trust me, it doesn't help flavor at all like it can in a dripper!) was to thread the cotton, leaving a lonnng tail to one side. I then brought this over the coil ala a flavor wick (and to take up space since its a much bigger "build area" than a standard PT head)
Works amazingly well, and the flavor isn't all that muted at all. I'll edit with some pics once I do the next one if it helps or is needed. In a PT2 head (the "basic" model) you might not need the extra flavor fluff on top to seal the gap, but a tiny bit can't hurt. (might also save "spitback" up the chimney as well.
I tested this on both the Vamo (from 6-11 watts) as well in voltage mode 3.7-4.2v, and also on my mech with a fresh 30amp 18650 on it (once again, 4.2v) Preforms super amazing on the mech, but most things do, but in a VV/ VW device (or heck, even just a standard EGO) seems to be a solid build.
Continue the path young Jedi....