Thats a good setup if your rebuilding the heads. But the lifespan of twist batteries isn't much over 3 months if you chain vape me lol.
When you start mixing, f you like tobacco liquids, take 1 10ml seedman's tobacco absolute and add it to 1 30ml of another straight tobacco flavoring. Its literally impossible to vape all of it b4 it expires.
Also check out RTS Vapes.