I have came to a conclusion on the Crown .25 coils that the S.S. settings on most of my mods, RX200, Cuboid,Evic minis for Temp do not work as well as just a single coil build or a single coil such as the Herakles+ coils, I also have a IStick tc100 and it has a seperate setting for single or dual coil, It seems I get a better vape on that useing the Crown set at Dual coils. Now for the Question, what TCR is the best that you have found for the Crown .25 coil? it almost seems anemic on the regular S.S. setting on the joyetechs, but much better with the Herakles coils. So I am thinking that the TCR in S.S.316 mode is set for a single coil. Anybody have any input or am I just overlooking something?