Here is the criteria for the 2018 NSW team selection.
I am not
advocating either the Vic methodology (as used for previous
nationals) or the NSW methodology. However I find it interesting
to compare them.
the main difference is that NSW methodology is based on actual
trials (over a lengthy timeframe) and for someone competing at
all of them, worst scores can discarded.
Vic method (assuming similar to 2016 Nationals) if a handler
and/or dog have an off day (at selection trials) it can affect
their chances of being selected. However It is 'similar' to the
actual Nationals event in that it is a special event on a
special day, so teams have to 'perform' to get the best result.
again, for interest only.