Just wondering what I should be expecting with different atty's. I have been using several different brands and styles for a little over a month now (Joye 510, Aero bridgeless, Cisco 306...) sort of rotating through them trying to find a favorite. They are all starting to taste/act strange, some with less vapor, some with less flavor. I've cleaned them all at least a couple of time in an alcohol bath. Is this about the average life for these things? Should I just toss them and start new?