I hate to agree a with a stacker here in public
But he has a point,
I'm in a TA unit which carries out an Air Support role north of the border (that narrows it down a tad!) When ever any squadron in the regiment needs spares for our plant we order it through the RAF system on our parent station and then transfer it ourselves from our HQ Squadron to the Squadron that needs it, it takes at least half the time than the dedicated army system takes and we usually even get the part we ordered which is always a bonus