Yes, well grade is still king....that being said, Careful selection of the mill size and future expansion say 5000 Ton per day follwed by another 5000 ton per day followed by another 5000 Ton per day. Careful control of costs...at lot of folks are mining < 1 gm / ton and still have total carrying costs of 700-850 an ounce ( a figure which I find hard to believe ).

Start at the low grade...60,000 ounce per year then double then triple as you ramp up.

Bio on Stockhouse posted a PDF of all significant known deposits ( saved it )

http://www.visualcapitalist.com/global-gold-mine-and-deposit-rankings-2013

Probe ranked 57th in overall know > 1 million ounces.

This will of course go to around 10,000,000 ( a lot more probable due to lack of infill drilling )

It's just a matter of time...

Gold will resurrect into the 1600 + range...

Just an opinion.