If you'd look in the Subtank Mini Builds thread you would see that probably half if not more of the STM users here seem to use twisted coil builds.
I was using twisted for a week or so, very similar to yours but 2mm diameter (28gauge at around 7ohms)... Then I decided to go back to a normal single coil and I noticed the vapor production was more or less equal and the twisted kanthal gave me warmer hits than I care for (when compared to a single coil at the same resistance/wattage used).
Right now I'm using an attempt at making a tensioned micro coil using a drill. 1.4 ohms and at 20 watts it's hitting dang near perfect for my taste.