Evening ben92I can accept your calculations of what you are...

Evening ben92

I can accept your calculations of what you are calculating, but, as long as you identify those widths of the intersections, with their start & finish depths, revealing their widths, then you may have saved me a lot of time.

As long as you have averaged the Visual Estimate of % Cpy for every 1 metre intersection, and, then averaged that over your calculated intersection widths that you have demonstrated, I may be able to accept those Cu %'s.

Of course, there was the few visual estimates of 30% Cpy, but of course not over the entire hole as stipulated in their Ann.

As long as you have adhered to the calculations in this post ,,,,,,, https://hotcopper.com.au/posts/59366464/single

...... then I think you may be around the ball park figure. I would like to see your depths and intersection widths that you have grouped to form those Cu%'s, as I just dont have the time at present.

Yes, we must remember, that Cpy Visual Estimates were up to 30%, the very best only. Many are well below that, but still extremely good.

Cheers to ALL.