Did the Diablo Challenge this year and as my first ever supported ride of any sort, I had a bunch of fun. If you saw a guy wandering around with a yellow and blue SPAM jersey, that was me. The Spam jersey garnered quite a few comments from people, someone even wanted a picture of the Spam burger on the back.
Managed to make it to the North Gate junction in roughly a half an hour and got to the bottom of the Wall in 59 minutes but didn't make it up to the top until a couple minutes later, so just outside of an hour. Next year I'll get it though!
My brother put in an impressive ride too. 1 hour 6 minutes in an 80's steel Specialized Allez with Suntour Superbe 2x7 drivetrain. I think he was the first down tube shifter bike to the finish, not like there was much competition there though.
As for the weather, I agree that it couldn't have been better. It was great fun getting a view of the sea of fog coming up and over the cloud layer.