i tried macro coil, mirco coil, parallel coil, twisted coil and clapton coil, heres my finding in a controlled duo build in 15 watts mod.
( taste as it varies in diff tank used) scale 1- 10 for Vape produce, 1 - 10 from cool to hot, 1 - 10 taste
1) macro & micro coil more or less the same just the diameter of the coil. (easy to make n maintainace, decent vape)
- coil 'glow' fast, vape produce 5, taste 5-6, 4-5 cool vape
2) paralled coil (need to change cotton very often as it get burn easily) not recommended for mint or menthol juice as the juice get too 'cold' due to the fast heat. it cover the actual taste
- coil 'glow' damn fast, vape produce 6-8, taste 7, 6-8 warm vape
3) twisted coil (falls between parallel and clapton) much easier to make than clapton and better than paralled as it produce much slower glow.
- coil 'glow' slower than (1) & (2), thick vape, n denser taste compared to parallel. warm vape 6-8.
4) clapton (hard to make but worth it)
- coil 'glow' much slower than the above but produce damn lot of heat thus making the vape more warmer and denser. Vape produce is 6-8, taste 6-8, 7-9 nice warm to hot vape. cotton doesnt get burn easily as it glow slowly.
just my 1cent