I am a MTL vaper at 10-12W and love my draw very tight..so tight that I actually had to mod my Kayfun V3 and Kayfun V5 and even my Kayfun Lite where I taped on hole because I found it too airy. I am still using my Kayfun Lite for like..forever, all the other stuff I don't even use anymore. I hear there are new MTL RTAs out, the Berserker, Siren, Ares etc. and more coming out every day. I am wondering whether any of those is actually better, with better taste etc. as compared to the good old Kayfun? What are your experiences?