General discussion (MEI), page-403

Very valid point(s) , bsumisu .
From a practical mining point of view , you would only first mine whats easily accessible , high grade and economic .
That said ...as an example ....if the clay zone(s) extend another 20 metres deeper ....that will probably be what the market will "grasp"!
From my point of view .....if 20 metres was the case ...then I would look at the likelihood , that the "high grade finishes"at say 17 metres , could/would go down by another 5 metres ( ie 25% of the 20 metres ) ..and that could /be an absolute "bonanza "result in itself !
As you say ...at what level the water table lays , will be the key to economic mining ,and to not have to go into the time and cost of high level engineering .
All just "ponderings"at this stage ...for MEI to start to sort out with this current drilling .