I have been looking and reading about tank systems and have a MAP tank inbound. The only tank that I have used until now is the UFS. I am wondering, is there any carto or CE2 tank that is NOT slipped on onto a carto? Maybe a tank that you can screw the carto into and it has it's own 510 connector that screws onto the PV? Something like the UFS but without the extra features? I can't get over the idea of the carto slipping out of the map tank and I think a tank that screws the carto into it would make a 'tighter' solution