Airnz gave me this "blue transit form" instead of the normal gold one as I was transiting onto ANA (booked by airnz)
When you come out you go to the furthest counter on the left.
The queue on the 2 times I transited were pretty short (like only 2 persons ahead of me) with 2 counters.
SO all in all very fast and very easy to transit.
The staff spoke perfect English and processed the form in minutes both times
Its the quickest and easiest I have ever exited a airport ! (Both times)