I tryed two diffrent ce2 510 connection clearomisers on my Provari and they wouldnt come close to screwing on to make battery contact. They fit on evreything else 510 connection i had. I emailed provape they said theres alot of clearomisers that are not made well from china. Huh? Has anyone else had this problem? If its 510 it should fit 510 it fits all my other 510 connections. What kind of attys is evreyone useing to drip with?