I did that last year as part of a solo century. Probably similar to what PrincessZippy did. Kicked my butt. The only things scarier than the climbs were the patrons at the Junction Cafe. Hooeey! Can we say "Deliverance"?
But I would love to do it again
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Ouch! Please sir, may I have another? (Free beer to the first person to identify the movie reference here.)