Sterling, my solution to the dry cleaning instructions is simply to ignore them. Truly. The ONLY items I dry clean or have professionally cleaned are:
Leather jackets or items with real leather trim.
Wool coats.
Woven wool blazers.
EVERYTHING else in my closet, whatever the tag says, I either wash in the machine or wash by hand. These trousers won't be any exception. I will wash in cold, hang to dry, and iron them. And I'll bet they come out just fine.
Hahaha, on the gap -- Elizabeth -- me, too! Well, truth is, if I wanted to wear these as PANTS vs. LEGGINGS, I could probably have stood to go up another size in these Sloans as well, in which case I would have had "gappage" again.