I just finished two loops for 60 miles and 5500 feet of climbing. Along the way, one knee and then the other would hurt. 7 miles in, the left knee was pretty painfull, and I thought about this thread. 2 or 3 miles later, the pain was gone. Several times while climbing, the right knee or the left would hurt and then not. Sometimes a shift forward or back in the saddle or dropping my heel or raising it or standing or whatever. I finished strong and got a PR on a climbing segment during the last 10 miles.
The only time my butt hurts is if I ride slow. Same with my feet. Oh and my shoulders were killing me when I reached for a sandwich from my jersey pocket.
I had a blast today.