I remember him playing LHP at the U20s world championships, which I'm pretty certain predated his career with the Brumbies.
I'll try and pull up the individual match day stats if necessary, but I'm 80ish% sure that from 3 tournaments and ~13 games he played 1 game at reserve loosehead and the rest of his games, including all his starts, were as a tighthead.
All the talk was that he was the best tighthead you'd seen at age grade in a long long time, and between him, PAE and Hoskins you'd be set for some time.
Edit:
2012
(My belief here is that World Rugby had a specific date, June 9th or 10th when International matches officially required an 8 man bench and 3 front rowers, prior to this the reserve tighthead would have been an "additional reserve" a lá how the Frenchies still do it, which is why he goes from 23 to 18, the man in 17 is Paraka in one game and and Latu in another, safe to say he played tighthead)
v Scotland reserve tighthead (Jersey 23)
v Argentina reserve tighthead (jersey 23)
v France (pool) reserve tighthead (jersey 18)
v France (pool) reserve tighthead (jersey 18)
v England reserve tighthead (jersey 18)
2013
v Ireland reserve tighthead
v New Zealand reserve tightead
v Fiji starting tighthead
v Argentina reserve tighthead
v Ireland reserve loosehead
2014
v Argentina starting tighthead
v England starting tighthead
v Italy reserve tighthead
v Samoa Starting tighthead
v France starting tighthead
6/6 starts at tighthead, 8/9 bench appearances at tighthead
2014 squad included Tom Robertson, while 2012 & 2013 had both Ollie Hoskins and Phil Kite, both of whom have only played tighthead at Senior level, and Kite switched to loosehead before AA was asked to play there.