correct me if i'm wrong  ,  but the procedure by SGS Labs according to VantageWire release  " the  second test will feature an adjustment of only one variable (grindsize) which adds negligible cost "  sounds pretty good . 

If all they are doing is grinding the samples to a different size to make it more efficient to extract impurities, that has to be a good thing. 

Is that on the right track Miningguy ?