mattp: I'd love to help replacing bolts too. hit me up with a PM if your going to go do that and I might be able to make my way up.
so those are 5/16 bolts! makes me feel a little better. I thought the hangers were all pretty good, stainless steel, no corrosion, although the vast majority were spinning freely. rapping off to the climbers right of Luke some bible verse there were a handful of truly awful bolts that instead of being replaced had been glued so the hangers wouldn't spin.
plenty of routes to upgrade there, and even a couple unbolted slabs far over to the left side of the rock.
there was a steep 20 foot wall looked 5.11 going up the top right side of the great arch. I wanted to clean it and give it a try but we ran out of time.