I think I experienced that normal, ie extremely minimal, level of shrinkage with my slim Ds. they always loosen up sfter a bit though.
I have bern hitchhiking around the states for over 2 months now and these a re really the greatest pants I could have brought with me. climbed a lot of fences, fallen, hopped freight trains, been attacked by dogs, and there is no damage on these pants. not needing to wash them is the best. if they get dirty I will just wash that area and continue to wear them until they're dry like, 30 mins later. <3
wish I had more outlier gear though!
That pretty cool to do that, best of luck.