Your kind of late to the game. You need to read the rest of the news releases after cores from the drilling where retrieved and assayed. The short of it is the results of the core samples where never really fully revealed to my recollection but must have been pretty good quality because LBSR and NAK worked out a deal that wiped out LBSR's debt ($5 mil I think) in exchange for several of LBSR's claims in the south block.

With the politcal environment in Alaska right now LBSR decided to devote most of it attention and energies to Hay Mountain claims. Arizona is a much better environment polically and climate related situation right now.

All of this is covered in previous news releases.