I've found recently I like carto tanks. They are fantastic. The are reliable, consistent and trouble free. They last me a long time and I like the flavor. I have three tanks now. Two UDCT's, both 6&3ml and a cheap tank for $6 from somewhere. I like the locking carto tanks a lot. I work all day and I'm very active so the locking part is great. My question is do the tanks make a difference in the vape or is it all up to the carto? Will I get a better vape out of other tanks? What tanks should I try and why?