I think it was after seeing that photo of the Prince walking about Balmoral (when it was first published) that I started tucking my flashes so only about half the length showed at most. I've never really noticed anyone else doing that, and when I see flashes flying wild in the breeze it seems to me rather... sloppy? It's definitely one of my big pet peeves with kilt-wearing.

The Prince is definitely a good one to take notes on! He can make things work that I would never think of trying to pull off, even if I did have the right garments...