When the first number in your calculation is 11000 it doesn't...

When the first number in your calculation is 11000 it doesn't take much variation in the other numbers to change the result considerably, I guess that's why there's a 25% range on the exploration target.

For example: 11000 x 6.5 x 190 x 2.9 = 39.4mt x .15% co = 59,100 t of co.
But I would think that Mr Borg is probably the most qualified person to work out the numbers that go into that calculation.

I would speculate that the fact the mineralisation extends into outcrops could add height to the depth so to speak.

Either way you can pretty much definitely add a third to either final number for the other 4km of consistent drills. And then there's the prospectivity of what hasn't been drilled yet....