May be I misread your post. Until the AF firmware I thought I was well experienced with my TC builds, understood what was going on. I didn't. I've learned a lot from the real time feedback. I got out my nautilus mini for the first time in a couple of years to remind myself of that experience. 10 watts on a 1.8 ohm coil is a cool low key vape. If you're satisfied with that and use a tank I think TC is optional but it should be possible to get a similar vape from TC.
The important thing is that none of these devices, nor any of the add-on PC interafces like escribe or AF tell you what the actual temp is and that is what is important for considering the how much juice might be overheated to produce formaldehyde/acrolein etc. I agree that using these interfaces and looking at what is going on relatively in real-time is pretty interesting!!