Four of us attempted counter clockwise last week of Sept. Got to Heaven Lake ~10 miles in but one of our party partially separated an achilles. We backed him out out slowly. I think the moderate rating is misleading. Parts are definitely difficult. Moderate is kind of an average. From the Crack through Hansen is constant up and down on a lot of irregular surface. If the quartzite gets wet it's slippery.
That said, what a beautiful place. We all intend to go back.