Agreed Big Poppa,
Evolution used a cut-off grade of 0.5 g/t Au in 2014 at A$1500/oz price, so 0.4 g/t is fine with current prices. Many WA resources/operations use 0.4 g/t Au cut-off, some even lower. Depends on scale, with larger operations having lower unit costs for mining, processing and overheads to support a lower cut-off
Better numbers will come from drilling and scoping studies no doubt.
https://evolutionmining.com.au/wp-content/uploads/2015/04/1051.pdf
Ann: Significant Resource Upgrade at Twin Hills Project, page-8
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