Juice in tanks always bruns way to fast for me, example the same juice and carto (Boge 2.o) in a 3mil Lil Mama tank, I will have to fill up 2x a day, now put the same carto Boge 2.0 on a Reo and I only go through 3 mils a day, same vape pace and same 18650 battery. Why this happens, I have no idea, so my tanks sit, but I do love my Reo grand!