Hey guys. I've been vaping for over a year. Current set ups include Kbox Mini, MVP 3 Pro, and Sigelei 100w - with Subtanks, Atlantis v2's, Tritons, Goblin mini, and a few RDA's. I just bought two TFV4's and I want to get into the TC option on them. Which mod would be the best to buy to be able...