I just got back from the ride. I did both loops.

I started at 7:44 (per my computer.)

My Garmin says about 3800 ft elevation over 104 miles, which technically isn't a lot, but I was feeling it. I did the long loop first. My speed and power really dropped off on the Buckley Loop. I should have hit the "lap" button on my gps so I could compare the two. During the climbs/rollers in the first 5-10 miles of the Buckley Loop, I was thinking "I'm going to blow up if the entire loop is going to be like this." Fortunately, it mellowed out.

The only problem with drivers was a guy who was passing a truck coming head on, but didn't come too close to me as I was riding the fogline. The guy he passed actually flipped off the passing motorist (clearly not me.)
Most motorists were very considerate.

Due to the nice weather, my cyclist tan is twice as dark now.

The Ride:

http://connect.garmin.com/activity/30506015