hummmm.... hadn't really thought about it... I've been a dripper most of the time, so I already am carrying several bottles around anyway.... have recently gotten into cartos though.... for work and such...FWIW, changing flavors in a feeder is as easy as putting in a different bottle w/ different liquid.I only vape 2 flavors so I also have attys for each and will switch those too. But since I have more than one feeder, I just keep the two juices loaded in a different feeder all the time. MCC goes in the Mini, HbN in my Hog. All win.
But for sure, you can switch flavors easily.