They are both working really well. With the same juice, I have the 3/32 ceramic on a Cobra/provari and the SS twist on a RSST/Telescope mechanical, both have .8ohm coils. When I switch from SS to ceramic or ceramic to SS, you can taste the difference. Its very slight. When you go from ceramic to SS, you first notice the metal taste, then it disappears. Same when you go from SS to ceramic, I notice the ceramic taste, but it also disappears. Its really only on the first vape, then gone.
The other thing I noticed is that I vape differently on ceramic than SS. Ceramic, I know that there can be a faster drop off with juice, so I naturally bring it to more of a horizontal position. With the SS, I stay at 45 degrees. This may be more due to having a larger wick hole gap (and/or slightly thicker SS mesh wick) in the RSST.
The one thing that is very noticeable is how the two different wick materials vape. The ceramic is a bit smoother, sweeter and wetter, but has less TH. The SS is flavorful and satisfying but you can notice the increase in TH kick from the nic. I want to say the SS has a grittier vape, but that may not be the best description, maybe better to say it has a sharper edge to the vape?
The twisted mesh has no different flavor than a plain rolled mesh. What was cool about the SS twist was that I had a bunch of smaller #400 pieces laying around, so I just rolled them up really quickly and then twisted them tight. Then I adjusted the number of mini wicks to the coil size, retwisted and pulse oxidized in place. I was in a rush to get that RSST running for the first time, so there really wasnt a lot finesse going into the build. It does wick as good as or better than any "solid" rolled mesh I have had. I was a bit surprised.
DSmooch mentioned that he prefers 28g round wire over ribbon on the ceramic. (you mention this too?) I think that there is some logic there. For me, ribbon provides a smoother vape, so maybe to get back some of that TH edge on ceramic I will need to setup a 28g round on ceramic and do a side by side comparison to the ribbon on SS mesh. Makes more sense than increasing nic levels.
Argh..just realized I typed way too much.