Long shot, page-69

There is still inconclusive evidence that the product is good. It certainly has potential but the incomplete test results released to date make it impossible to gauge. In my opinion, if the product was anywhere near as good as claimed, they would have had a deal with one of the major players in US proppants by now. The lack of interest speaks volumes.

It is up to you to make your own mind on that one but it is difficult finding a reliable information source.