Ok, to throw the bomb out there, just what is wrong with "position and hold." vrs Line up and wait???? Don't say just cause that is ICAO. That doesn't hold water with me. ICAO makes changes, just like that stupid one not so long about on changing to taxi to holding position.... Looks to me like they CAUSED more of a problem.
I think you've just made the case for uniformity, Scott!
If everyone were to use the consistent phraseology of "line-up and wait", then the phraseology "taxi to holding position" wouldn't have been a problem. It's only
because a significant proportion of the world chooses to use the non-ICAO "position and hold" that "taxi to hold
in position" has a potential ambiguity to that subset of pilots.
AFAIK, no one died uncovering the ambiguity.