Of course as with all us woodworkers, they would line up all of the slots to face the same direction. Only in this case it means taking the screw out and giving the countersink tool a few extra turns just to get things to line up.
That means if you take the screws out, they'd have to go back in the same holes for the slots to still line up, assuming a random start to the cut threads w.r.t. the slot.
