[BR3W CITY]

lol ya your logic was non sequitur.
The fittings your have now are the version1 of the fittings. The plastic center loses grasp of the barb and can pop off. My return line popped off on a roadtrip and pumped raw gas onto the headers....at a gas station. The version 2 cannot come off without mechanical force. The problem is the manufacturer doesn't aknowledge the issues and won't recall them.