Nope I just meant flavor.. I can actually taste the diferent flavors in my DIY for the first time instead of just the mix (if that makes any sense) and do not want to mess up what I have if the flavors linger in the wick at all.. I know it's not a tank carto, it's a SS mesh, just asking before I venture out to the other 30 bottles that have been sitting on the shelf, lol..
If you are really worried about flavor crossover you can always rinse with water by filling it with a syringe and then sucking the water out again.