The mill rate of 70 vs 125 tpd will make some difference, but even the 70 tpd figure should have them generating quite a bit of cash- at 1 oz/t, that's $100k/day, or $3M/month. And if they are processing ore at 2, 3, or 4 oz/t, that's $6-12M/month.

I don't consider the Murphy report to be anything to base any calculations on. If I remember, they used a very low grade for their figures- 6 g/t? (0.2 oz). So 2 oz/t at 150 tpd (or 4 oz/t at 75 tpd) should give the same yield, and the same value $2.50.

The 15% on the Sinker is the same as the 15% elsewhere- but it does make it that much higher a priority to mine via quitclaims rather than by connecting up to the other shafts where we pay another 15% to GHDC (I assume). But even if we go through the Sinker, Pierre gets his cut, even if GHDC doesn't. Something to think about.