Ok I need to ask this because it just doesn't seem right to me. I have 2 minis had them now a couple months the most if even that. Anyway I use carto tanks on mine. IBtanks and Iken Cartos. So I screw the tank in and use, great vape but the tank wiggles from side to side at the connector. Now the cartos are flanged and it doesn't sit flush against the top cap of the Provari. It doesn't move a lot but enough to have me worried something is wrong. Is this normal for a tank to be able to wiggle a little even though it is secure in the threads without being over tightened? I did write to provape and they said that was normal because they set the pin higher due to the many dif juice deliver devices people use on there devices. I don't know it still doesn't seem wright that the tank should move at all. Any info from fellow members would be appreciated.