I'm mainly on Titanium, just because I can't get the SS profiles to perform consistently. But yes you need to vape at a higher temp, for me it's generally 220C on none DNA versus 250ish on the DNA's.
You might also want to check out DJLSB Vapes site (http://www.djlsbvapes.com/dna200/), I'm...
Stupid question have you tested the tank's resistance with a tab or something similar?
I found that most of the none DNA's (cuboid, kooper etc) reads a sligthly higher resistance then the dna's
Also which wire profile are you using? The SS316 that comes with the devices are generally bad.