After watching tonight's episode, regarding the three claims:
On the Big Nugget mine, I'm proud of Parker taking responsibility for his own and other's safety by shutting down the Discovery claim. That road looked awfully sketchy to me.
On Porcupine Creek, I still don't understand why an excavator can't seem to keep its tracks on, even when it is "stationary" in the bottom of the pit. I have to say, too, that Fred doesn't seem to be to bad a guy, his crew is certainly more "together" than any of the others. You really get the sense that they're all in it together, even if they have their differences. (I loved it when the girl found the cracks and Dustin went and got the dredge to work the hole. Ole dad had to eat his words, but he did, and I'm proud of him.)
As far as Indian River goes, the "Hoffman crew" could help itself most, in my opinion, by keeping their fearless leader OFF the equipment. Todd Hoffman is respected by all the crew members, and he is willing to take a leadership role; he certainly has passion and vision --all valuable qualities-- but he needs to let others run the equipment and listen a little bit to what they're telling him. I think he makes a good cheer leader but not so good an operator. If he (or someone else) had been watching the plant and supervising its operation, they wouldn't have washed any gold out (which I'm sure they did, even though they made their 100 oz).
Again, just my opinion after watching what the editors put on the screen.