We are also in Australia, but my DS is in Year 4 this year.

It is a long wait for the results, but for us, it was very mixed. My gifted child scored under the state average for maths, but is working 2-3 years ahead at school. Not sure what happened there, but it doesn't look great. It was very interesting to see what his results actually were for English. the school consider that his weak subject and he floored them with his results. It actually was beneficial for us.

Good luck