just on SIR
maybe more suited to thread put I'll post here too
I have calc weighted-avg grade about 4.2%ni and 1.8%cu
[maybe I have an error cause that seems v.big]
the npv consensus was 3%ni and 1.5%cu
I posted some sensitivities a while ago but grade makes a huge difference, suspect this is reason for the recent surge [assays from the big 700-800 lines]
