I also heard that the pre mix uses a German nic which I'm not sure what the heck that is but VG is VG and I only use 4mg so have a lifetime supply of nic with 2 liters. I also got to thinking about future mods and I think I have enough to last. I have 4 dna's that I use daily now but my SX's also do a great job and I have 3 new ML's and 2 new M's, 2 slightly used M's 3 new VTC minis so I think I'm good might get a couple more K5's and 20-30 more O rings for them. Plus all the Kanger ST minis I have. Need more SS wire and KGD. Oh and another gallon of VG.
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