Glad you enjoyed it. Good on you for still riding at 81! I'm workin on my plan to still be riding at 81, maybe only an electric-assist recumbent tricycle by then, but the non-impact physical activity of cycling can't be beat! (and sure beats loafing in a metal cage, exercising only the right ankle)
And next time you need a tire change, you should see whether you can fit a 700x25 into that Cannondale. Higher pressures of narrow tires only yields the illusion of faster speed, because it transmits more road vibration to the body. What you want for comfort and speed is the widest, most supple tires your frame can fit, at the lowest pressure that doesn't risk pinch flats. If you liked that video,
check out this audio, it is eye-opening! (which is pretty impressive for 'audio')