Its almost identical what happened here a few weeks ago.
Not enough water put on the track early in the week,drying windy days middle of the week then irriagtion/rain
end of the week which hasn't soaked in top few inches.
As someone said soak it early in the week,when its end of the week and you putting 10mls on with rain in the forecast and track is hard then
its already to late.There was a reason why horses slipped there Tuesday in trackwork because it was to hard with a few light showers on it.
I wonder what the next NZTR report about this will say:)