I tried alot of MTL tanks and for a long time, recently been using the Berserker mini and Siren v2 22mm which have really made me convert. As much as I tried to like the Siren v2, I just can't seem to get it perfect. Either there is gurgling or dry hits and think its to do with the gta style deck and amount of cotton. When I do get a good vape its lacking in flavour on any airflow setting. The settings themselves are perfect in terms of draw options but the wide open is too airy with little flavour and second biggest is great but again lacks the flavour of these other rta’s Ive used. I have tried many MTL tanks out there not just these but so far I think the little Beserker mini my personal best. I list the popular mtl rta in the list: Berserker MTL RTA Digiflavor Siren V2 Innokin Ares MTL RTA Coppervape Skyline Exceptional flavour, draw and ease of use deck. Whats yours and why?