Exploration Target, page-11

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....