Thusfar, in my quest for the perfect vape, I've been less concerned with atty longevity than with finding attys that hit the spot to start with. Now that I've got dial in what I'm looking for (2.0 resistance level type behavior), I'm wondering what people's experience is with how long attys can be expected to hit that spot before requiring a ceremonious burial. I haven't been searching for longevity, but what I've noticed so far is that 510s don't last as well as 901s or 801s (or 401s). I've only used one (yup, just one) 801 atty so far, so that's not a large sample size to say the least I do have a pile of 510s and a few 901s (and decent pile of 401s too). It's my experience that 510s give up the ghost faster than most. Wondering if others find that to be the case too? I've never had an atty "pop" on me yet. Instead, they whither and die by way of under performing in terms of vapor and flavor to the point that I just can't stand to use it anymore at 3.7v. If a cleaning/dry burning does bring it back sufficiently, its done for. Some of these "done for" attys may still be usable at 5v (but they get really hot).