Hey jdub,
. . ."also, I cant get any to fire on my provape. This device has proven to be finicky in the past though. I'm using the silver ones btw"
I had a similar problem with my ProVape. Yet the same carto smoked up a storm on my LS. I contacted the factory, was told to remove the atty connector, push the center brass button up, (out), as far as I could. I did this. It moved out a smidge. Screwed it back on ProVape, screwed that carto back on. . .bwalla. . .ProVape's a makin tons of smoke. You can get some glue stuff if you want to ensure the contact doesn't move too far out of position to make contact in the future. Fat chance I'm a gonna do that though.
ProVape told me that's one of the reasons they don't carry C-E2's. The spec on their connector distance is not to an universal spec. They also didn't care for the taste they got out of um. But, I sure do.
Try this and see if it cures your problems too.
Cheers,
otrpu