I attempted Capitol 33 years ago with a friend who was a serious international mountaineer.   The rock on this peak is some of the worst of the Elks, rocks the size of refrigerators completely unattached along the Knife Edge and starting to slide toward oblivion the minute you place a foot on them.  I imagine 30 years of climbers have knocked down some of the worst, but the entire peak is rotten to the core.  From mid Knife edge, we watched two ahead of us spidermanning up the normal main route to the final ridge.  100 feet below that section of the "trail" the precipice drops vertical for hundreds of feet (you angle out to the left to get on this section of "trail").  A patch of loose rack, about thirty feet by thirty feet, it all started a slow slide as one giant agglommeration,  like a giant piece of internal onion  skin with them plastered on it.  Rope might help? No, everything that could be roped to was sliding as a oner.  After it all sliding down about 6 feet, it stopped.