It is just an estimate of how much Gold, Copper and Silver is going be seen in AZ Tombstone this year! Once the SRK report comes out with a staged drill plan, then the drilling (as planned) would prove the resource estimates. Again, this is in my humble opinion.
JB has contracted with SRK for a purpose - to give the NI43-101 more CREDIBILITY. International investors are going to love SRK report.