I actually dropped my TVF4 in with dual Ti TC coils. Setup a new profile, and really I am amazed. Hit's like a beast, and the customization options are seemingly endless. I'm probably going to buy an RX200S and use the TFV8 on that until they come out with TC coils for it. If they ever do. If not, I am really happy with the TVF4 tank, cool hits even at 550 degrees, now to 'dial in' the right wattage and boost and all the other goodies. I also have a Eleaf Lemo 3 tank on pre order, they have a complete line of TC coils available, if the airflow is good enough, it might work out well. We'll see. Still dissapointed I cannot accurately use the tank I wanted, but, hey this is about as much hobby as anything else, a learning curve is to be expected. Oh and for the Pico, no there is no Clapton or Kanthal options, however, it will NOT go over whatever temperature I set it at in wattage mode with a Clapton coil in it. Thus, that little thing is able to figure out the temperature of the coil, seemingly no matter what it's made of. That was my gripe. If the DNA was able to sense the temperature of the TFV8 I would be fine using it in wattage mode. It's the fact that is has no clue what the temp is that bugs me. Thanks for the feedback!