I just started replumbing my fuel system (switching over to ptfe hose), Im using all Fragola 8an hose and fittings. The first fitting I put on which happened to be a 90 degree fitting went on smoothly, every thing is straight and it threaded on all the Way down til it was snug. Now the question I have is should the 90 part that swivels be loose as in enough to wobble back and forth a little Even after its tight? I took the other 90’s I have out of package and they all seem to wobble right at the swivel portion, but I figured once I tightened it up it would snug up and be solid. Well not so much, it still wobbles and feels loose in the middle right above where the nut meets the 90 degree portion and the fitting swivels. I didnt want to continue putting these one if something is wrong with them. Anyone else have this issue or is there something wrong with these?