It’s all coming together!!! Nicely, page-258

On the announcement released 18/02/16, it is stated, directly below the table that Spid showed,

"The test samples were subject to a standardised and simple roughing flotation regime with various stages of grinding and/or polishing and slight variations in flotation conditions. At a coarse grind size of 850 micron the tests indicate that a high concentrate grade above 95% is easily achieved and maintained with the later testwork showing that the larger flakes can be preserved and are constantly improved with each test. Further work will now be focused on attrition mechanics to retain more of the high ratios of >300µ and >500µ material highlighted in the intensive petrographic studies reported earlier. (See ASX announcement 15 February 2016. Of further interest in Test 6 and 7 is that while the total “plus 180µ” ratio is up marginally, the “plus 300µ” or Jumbo ratio has more than doubled. This will have a material effect on the basket revenue of the concentrate.) "

Spid tried to present the table as 'evidence' that it's the different cores and weathered material (9 cores ie fresh + 1 weathered sample) that yields the differences. When the purpose of the test is to optimise the regime that retain flake size whilst producing concentrate of acceptable grade.

A separate section deals with the weathered sample:
"A simple flotation regime carried out on the sample resulted in concentrate grades of 85.7 %TGC with excellent flake size retention of >74% Large, Jumbo and Super Jumbo flakes. Further work is planned to optimize larger flake concentrate recovery while at the same time increasing the concentrate grade. The implications of these results are that the surface material appears to have a higher ratio of large and jumbo flake material and this is borne out in the petrography where this sample contained an estimated 90% of flakes larger than 180µ. Since the oxidation halo at The Gilbert Arc site is not deep, significant amounts of near surface and outcrop are available for exploitation. As a result, separate regimes of test work will be carried out for surface and fresh material."

Which, if you match up the TGC and flake size, was test 10.

Reading comprehension is somewhat important. Unless of course, it is wilful ignorance.