Not really. It was pretty quick. Burnt smell/taste, carto gone within a second, like a voltage spike or something. That shouldn't happen with protected 14500s, though. The attys had burnt out the day before, but I thought they were just bad. They were the ones that came with my 510 and Riva, so I thought they were cheap stuff. It worked ok with cartos for a day after that, then started frying those too.
What does the center pin look like,is it straight? can you take pictures?