What??? haha sorry Joe...I see Reg already nailed the answer for me...I even understand it better now...lol...Thanks Reg, well said!!
One other thing that would affect the orientation of the fittings would be the location of the bottom face in relation to the length and start point of the threads on each fitting, any changes to that would allow the fittings to rotate more or less before it bottoms out on the valve port face. And I know none of the fittings I made are exactly the same.
( For any technical support please contact RCP57, or just wait until he gets time to figure out my "BS" and then translate it into english!!
)