Ann: Metallurgical Test-Work Results - Aucu Gold Deposit, page-4

Gravity testing not done at this stage ...I'll be interested to see when and if they are done if they are similar to 2016 gravity testing .
Froth flotation would need different conditions for the copper compared to the gold and would require a fine grind , water and substantial plant .
A simple startup could be gravity only gold requiring a smaller cap-ex and less electricity(deisel trucked in ?) , plant and reagents while stockpiling tailings for later treatment .For the sake of say the final 6% of gold (and the copper I suppose ) is it worth it ?
Gets a cashflow with less borrowing hence less dilution.