The hill coming back up is on some of our rando routes, so you hit it at about the hundred mile mark in late afternoon (Rio Vista Rumble, if I remember right).
And, speaking of that effect, on our 600k this weekend, you hit Cherry Pie Hill about 13 miles from the finish, so it's late afternoon after 360 miles when you go up. That tends to dampen one's enthusiasm.
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"be careful this rando stuff is addictive and dan's the 'pusher'."