I can speak directly on this issue.
I have 2 DID /16 set up here today. Both have essentially identical wick - #200 mesh.
One is using .25 Kanthal A for a resistance of 1.2ohm, the other is using .20 Kantal A for a resistance of 1.7 ohm.. 4 wraps each.
The 1.2ohm build is running on a Poldiac (so around 11.5 watts average) and the 1.7 is running on the Semovar at 12 watts.
The Semovar one gets really hot, so much so that you don't want to hit to top cap by mistake when vaping.
The other one just gets warm.