I felted the girls' mittens this afternoon, and they turned out beautifully, and perfectly sized. Which is good, because I got distracted while they were in the washing machine and forgot about them. Fortunately they felted down to the perfect size in one cycle!
I have to say, the Cascade 220 felted much better than the Lamb's Pride. The Lamb's Pride took 3 times to felt down--the Cascade did it in one, and you can hardly see that there was ever any stitching.
I'm also happy to report the girls love them ;)