The one thing you can not do is argue the FACT that the current waste percentage is running 70%. Those number are in the BK Interim Reports.
You can not argue the reasons "why it is" because you have no factual evidence to support your argument.
A: Current waste % is 70%. How do you know what the current waste is? Do you have daily reports from the mine showing 70%?
Waste percentage for September was reported as 70%. Agreed. Fact. But that doesn't mean it is currently 70%. It could be better. It could be worse. But it is not a FACT, unless the daily reports can be provided.