So, I have several CFL's in fixtures that positions the bulbs upside down (think bathroom vanity light, accent lights next to garage, etc). Someone tried telling me that CFL's arn't supposed to be inverted like that, but I find that hard to believe. Any truth to that statement? Maybe that was for first gen CFL's?
And on a possibly related note, I have a Sylvania CFL flaking out on me after only 2 months of use (skittish blinking, evoking a Saw or other favorite horror movie vibe). It happens to be one that's hanging upside down.