I wouldn't be writing off PRB yet... He has hit the peridotite host rock.... same as indicated on the NOT cross sections... the sulphides underlying this material.
Dave P drilled from marginal data.. and thus new Vtem underway. he overshot his target. he should have continued drilling to intersect the target at 400 meters... instead he passed through it at about 200meters vertical.
What he needs to do is downhole on these 2 southern holes... define that target and go back and drill it ...JMHO
From FWR nr:
As reported in Stockwatch news on June 11, 2008, May 2, 2008, and June 29, 2006, the drilling results from the massive chromitite layers discovered in a peridotite sill encountered in drill-holes FW-06-03