Wow. No way should you be going through a carto a day! Thats nutz! I have yet to try the lr cartos. I use the regular boge and can get weeks out of them. Even using 30/70 pg/vg. Some of the darker vr juice did gunk them up quickly though, so i stopped using it. I still think you would love the map tank. No gunking even using straight vg and it tastes like dripping. Warm yummy flavor.