Wow, that's a long time to be free of issues! I think I only got a few weeks use out of the full size before it got extremely stuck.On the big naughty, mine just started to get hard the last week- after having it since Aug '16.
I used to just tighten it with the vape band. When the vape band slipped on the glass, that's where I left it.
Dunno what changed other than that I cleaned it well around then. I'm going to try a thin washer on it so it doesn't go down so far...
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