Spooked a bit by Dr. Douglass' and Phil's report of UK denim kilts curling, I sought advice on the Yahoo UK board.

Got this response,

"All denim clothing curls at the hem when you wash it. Look at your
jeans when you take them out of the washer or dryer. Curled, right???
It's denim's nature. I iron my black and blue denim after I take it
out of the dryer...that's right the dryer on normal dry. They have
both faded beautifully.

You can post this reply on that other board if you like...

102 kilts and still counting"

So, two completely different experiences. Puzzling, very puzzling...