I have two successfully tested tanks! Both held air while connected together for 24+ hours. I think Im good to go. Retrofitting for the banjo fittings was a bit of a project but got it done... highly highly suggest doing this from the start... Also the new sealant the factory is shipping, its blue, Needs to be added to both threads male and female to form a tight seal and before inserting needs to sit for quite a while (read 30 mins or so) for the solvents to evaporate. I originally only put the sealant on the male threads and avoided the last thread with the thinking this would keep from contaminating the tank/fuel... it seems for this stuff to work that thinking needs to be abandoned.

Just my experience in case it helps anyone.