Three people completed three Skyline trips each in a 24 hour period of glory and agony. This totals about 25000 feet of elevation gain. They were Rick Kent, Michael and Zippedydude. I am sure they will post a trip report later. In the meantime here is a trip report by Ze who did "only" two Skylines.
http://socalhikes.com/2009/11/double-th ... k-to-back/
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http://mtsanjacinto.info/viewforum.php?f=1