I,m having the same results;hot ,harsh hits and little vapor.Am using 28g @.5 ohms or so on a REO.I'm a noob at dual coils and my little reomizer single is out performing the Vector.Not giving up though,will try a parallel coil next.
I tried building my own coils on my Vector, but only had 28 ga Kanthal wire, and my first build was at .81ohm.
Tried again, messed up in my calculations, figured I needed *fewer* wraps to lower the resistance to around .5 ohm, so I build two coils with 5 wraps, and ended up with a build that had 1.18ohm!
Gave up, and went to the local B & M.
He did a build with 26ga wire, 8 wraps at 3.5mm (I believe), and it ended up at a resistance of .38ohm, and works FANTASTIC!
It's a cooler vape then my previous .56ohm build, delivers tons of vapor and great flavor, without being too hot!
I've ordered some 26ga Kanthal and a ceramic tweezer, but I'm so clueless with building! I would have thought a .38ohm resistance would have been hotter then my previous build at .56.... oh well, I'll wait to get the thicker wire, and then try again!