Is it bad to have a large rotation of tanks? I have three right now but I really like to switch up my flavors a lot so I just ordered the 8 pack of the 6ml tanks... Will they wear worse if they are sitting around not getting actively used? What is the recommended mode of storing a full tank?
ETA: Also, what is an expected amount of time for the in-tank carto to last? Approximately how many fills should you get out of a carto? I've refilled all of my current ones about 4 times and they're still working just as well as the day I filled them (ew, save for my first carto that I forgot to prime and ruined immediately!).