Double Ray is definitely doable i just don ' t know if you need 2 delayer <| sep |> Awesome , since I saw you ' re interested in switching between MTL and DL I currently use the Atom Metropolis , the Kanger SubTank is also good for this . I ' m using the same coil between the two , and just switching the airflow setting . They both take the Kanger RBA and prebuilt coils so that ' s a great addition . Unfortunately the tank doesn ' t really shine in neither direct lung or mouth to lung but is fairly versatile and cheap . I ' m a fan for MTL especially for my daily vape needs , but finding a good quality MTL tank seems to be a complete struggle in the market now . You either get those super cheap , ego style devices that just don ' t get good reviews , or basically a Kayfun now with some alternatives to the Kayfun coming , but still priced at the high end of the spectrum . Like I said , the Digiflavor Siren got some good reviews for an affordable MTL tank , but I can ' t seem to find a supplier for Europe yet .