I think there are two air paths, one on the input side which is the Fill Nipple, Gauge and 7.5K burst disk and the other is on the regulated output with the 1.5k burst disk.
Saying that, its only a guess as we dont have the scematics of the regulator
I sure I read somewhere that it was possible to rotate the regulator in the bottle by lossening the small grub screws but I wouldent like to try it and if you do make sure the bottle is fully discharged of any air first, don't what you replying with less fingers than you started with.
