They have a break in period of a day. Leave it filled / primed overnight. Other than that I love them have many many left. Many different batches and that's never a problem. Any other variable here?
I don't know what's going on with them, lol. As I said, I use them with a Screwdriver and think they're great, which is why I recommended them to my friend who was getting fed up with constantly having to refill has small 510 carts. My friend and a guy that he works with both bought the exact same clearomisers that I use from Totally Wicked, both are using the regular Titan 510 batteries that come with the starter kits, and both have this issue with the juice turning dark and poor vapour. My friend also said that they don't last long, as he's on the last of the 5 he bought and he only bought them a few weeks ago. I bought a pack of 5 ages before he bought his and I'm still on the first one, which is another reason why I recommended them (longevity).
The only difference is that my clearomisers are attached to a Screwdriver battery and his (and his workmate's) are being used with a 510 battery. EDIT - Also, I'm using TW juice and the two other guys are not, but the juice they're using is absolutely fine with their normal 510 atomisers and I've used it with my Screwdriver and it's fine too, so I'm thinking that they either both got a bad batch of clearomisers, or it's something to do with the batteries that we're using to power them.
Personally I still think they're brilliant, but obviously my friend can't say the same!
