roumieu,
what bothers me about Milestone in terms of depth is that there does not seem to be any gold at or close to the surface. I could be wrong, but I see gold only at depth not close to the surface. If you want to bulk mine by the way of open pit you have to remove all that barren material before making any money. Not only do you have to go down but also sideways, and you get a big hole like an inverted skydome before you even have made a penny. That would be a very high expense but could potentially be justified if what is below is rich and in sufficient quantities, but again I see neither.
If the company was convinced that they has something potentially economic at Milestone they should come up with some nice graphics/illustration of the gold distribution, instead the say: "We are pleased to ... with x.xx g/tonne from yyy to xyz m" where both the x.xx is marginal at best and the yyy is generally below 100 m etc. Show the stuff if is there