Rode 39.9 miles this Sunday, taking on the WildcatCanyon climb at mile 23. About 500' elevation change. I"m no climber, that's for sure, but enough cars and motorcycles passed me that I needed to finish the climb and get out of their way.
The descent was kinda cool, staying with most cars, getting passed only on the longer straightaways, and frying the brakes to stay attached.
Ride took almost 4 hours, the climb averaging close to 6 mph foreever.