well it is not really the nova itself i am using it on a 3.7v box from madvapes a?d i guess the box threads are a little wonkie and the nova would tilt to one side or the othed so i bought a 510-510 adapter and that keeps it from tilting but when i screw it down all the way it will not fire so i back it out a 1/4 turn ind it fires just fine any body else have this problem???