Sorry, is that the model number for the new FC mod? Never seen that number before, not sure if it is in the description there somewhere or what... The new FC mod is 18 mm female, for the downstem and the mouthpiece, s shape dropdown adapter is a great way to go 18-14, and you could always use an adapter for the mouthpiece too, but 18 mm is better for more airflow in my experience especially with the mouthpiece
I don't have those two vapes, I'm not sure how desirable they are through water comparatively, of course anything can be used dry, I think a straight fab or egg is a nice dry piece for cooling without water, and becomes more involved with water too... I was going to recommend a recycler like the FC-198 but that is really only good with water, so it would make sense to get that and a hook separately? I never really got into using ashcatch with hook to be a little bub although I have been tempted several times... It depends what you're into form factor-wise versatility wise, cooling-wise but also water conditioning Yeah there are just so many different options, even the prophet can be used in reverse with a little bit of water that is a very nice experience for minimal perc but a little water conditioning...