In my ambitious youth I took a short course in geostatistics. The only bit I ever used was a simple method to estimate the range, along with probabilities, of contained metal and tons of ore. The figures can swing all over but at least you know all they can tell you. We need something like this done now. Such a set of figures would be far more use to investors than the verbose tome of the last 43-101 . I've yet to see a company make these estimates but as an investor in ATAC  they would give me a lot of confidence-  or I hope they would!