RE:RE:65% Increase In Gold Grade From Bulk Metallurgical Test If you look at all the results most samples showed a bump in grade but there were some cases when the gold grades decreased with the bulk sampling. I would expect they would use statistical analysis of the entire sample population to arrive at an average grade bump of 65%. Once again keep in mind that this is work done by 3rd party engineers and they have to vet and approve any information that AGG releases. PS. Check you inbox Chris if you haven't already.