I have been changing things up a bit lately. Instead of having 4-5 carts filled and ready to switch I have just been toping off a single cart when the flavor changes. Around ten drops after an initial fill of 22. I am going to use the same cart until it needs to go to the cleaning pile and then move on. I just have too many carts up, some burned, some tight on the draw, etc. Assuming that I use one flavor at a time this will seemingly cut down on the carto-chaos I tend to have. My juice in the bottle has been steeped and is ready to go. I get the best flavor (most days this week: ry4) with a fresh drip and so far I enjoy vaping this way even more. I have my next new cart along also. I realize if you switch flavors often or are totally on the go this may not work well. NEVER drip and drive of course. For me however this way should cut down on some of my wasted carts and get more from each one. Too much trouble? Any thoughts fam??