Always happy to help when I can Amalias.
1) The SS316 setting works beautifully with the 2 SS Crown coils that I've tried so far as well as the RBA. The Ni200 legs aren't an issue.
2) You can adjust the user defined TCR values in small increments, but it's a little different from other devices. If you plan on using SS more than any other TC wire, then a good starting point for the VTC Mini TCR settings might be:
M1 = 0092 (common for for 316L)
M2 = 0105 (common for 304)
M3 = 0120 (default)
From what I can tell, the SS316 setting has a TCR of around 140. The 3 user TCR settings above generally lowers the amount of heat you will get with SS builds. The lower the TCR number the cooler the vape at a given temp setting. For exapmle, I much prefer to vape my 304SS builds with the 304SS TCR (M2 set to 0105), but it also works with the standard 316L setting. It's vapes cooler with the TCR set to 0105 than the default SS316 setting. Using the new TCR settings starts off confusing, but it gets much easier as you use them.
Strange as it may sound, every stainless steel single-coil I've tried vapes pretty well with any of the TCR settings. It simply gets cooler with lower TCR settings using the same temperature and watt settings.
Dual coil builds are another matter. I'll have to play around with more dual coil builds to get a handle on them. Hopefully we have a few dual coil vapers here that can tell us what TCR settings they find work best. Might have to bust out some dripers and start playing around with them.
I'm a dual coil Human. I used to stay on top of the vaping technological advances and jumped into TC with both feet in early 2015 buying several expensive DNA40 devices. I guess the difficulty of building with Ni200 coupled with the uncertainty of the wisdom of vaping a toxic wire sort of put me off my stride. But I love my Evic minis and I'm glad that Joytech is kicking ass in firmware updates. I'll get around to switching to the new version soon. I was never happy with the original SS TC mode when I tried it with my Crown tanks. Glad to hear that it rocks now.
I'm just making my very first Ti build today, even though I've had the wire for months now. Ti flavor seems a bit muted and the wire is super malleable and was a bit of a pain to build. Guess I'll have to get some SS wire and add it to my collection. Sigh. Fucking shiny-itis strikes again. Messing around with the Rx200 these days and waiting for the Ruelaux DNA200 to show up in the vape mail. I wish my boys at Lightning Vapes had SS wire, I've always liked buying from them. Thanks again for your insight, keep up the posting. I really like to learn from the experience of my fellow vaping Humans! You make the mistakes and then let me know so I can avoid them, you find out what works and I'll follow your trailblazing path to cloudy, flavorful bliss!