Thank you for sharing this. I did the day 3 route with an additional 56km round trip from Gent, where we are staying, and it was an utterly brilliant day out, even allowing for my Garmin developing a Groundhog Day syndrome on the loop involving the Schapenberg - I did a full repeat before ignoring its instructions for a third go.
I would never have been able to put such a route together - there were various points where I realised I had been there before, but from a different directions - a sort of Wessex syndrome, and one or two of the hills were ones that Shawn Shaw would have been proud of. It also gave me (if I didn't already have it) an increased astonishment of the skills of professional cyclists - not in the way that they get up the climbs in less than half the times they do, but the way they drop down the descents at 40mph+
I will watch the 2025 Tour of Flanders with a renewed appreciation.