I completed the Scott Pilgrim hat using the Super Wash wool. It was nice to knit with. A bit stretchier and a bit softer. I'm glad I washed it before putting it on Etsy for sale. I washed it with a load of laundry and it was a lint magnet. Even more lint attached to it after putting it in the dryer. Two more washes and dried in the dryer resulted in a hat that was a lot tighter than before I washed it. The hat didn't felt, but the ridges were much less noticeable.
I'm glad that I tried the different yarn since I hadn't used it before, but I will stick to the regular 100% wool with hand washing and air drying.