I started with the Ego-C. I had a similar experience. The hard plastic bottom tends to widen over time and start leaking. I tried the rubber caps and then started getting dry hits, moved back to the hard plastic caps and they worked for awhile. At some point I tried a vivi nova and kanger T3 and just stopped using the ego-c atomizer. FYI after a couple of tanks, wash the atomizer base and cone because they get caked up and start causing inconsistent vaping.