Steve,
He started at the Horseshoe Meadows and did Langley via OAP then did a cross country traverse to Whitney and down the Portal in a very long day. He then got a ride back to the Horseshoe Meadows to complete the day.
He used to have a site up with a long and detailed TR, but took everything down recently. He is one of those strange cats who doesn't get affected by the altitude, absolutely zero acclimatizing for the trip, just drove up and did it. He also happens to be one of those people who takes joy in self suffering.
Obviously, it's not something anyone can just do on a whim.