I think I set a personal best speed record yesterday on one of the incredible steep hills I encountered.
That’s 400 pounds/~180 kg of bike, rider and loaded panniers in essentially what felt like free fall instead of a controlled descent at just a hair under 40 mph/65 kph for quite some distance.
Oddly enough, I spotted this article [linkie] when I stopped for the night. Good advice, and pretty much how it all went for me. I don’t want to do this very often, but it’s a memorable experience.