From the announcement today:
Q: Can you provide more detail on the error with stockpile grade?
A: The estimated grade for the medium grade stockpile is 45 g/t; however an incorrect number of 60 g/t was used in the forecast. This was a manual input error.
Doesn't seem to be a problem with the resource, but a human error led to December forecast not being met.
If this was good in the 50's it's certainly good in the 30's.imo.
Hag