Phew. Superwash yarn does, in fact, block out.
The Diamond and Pearls Shawl from the Knitter's Book of Yarn is completed, and blocked successfully. Another Christmas present is finished!
My k2tog vs. ssk problem isn't quite as glaring in the blocked shawl (k2togs: above left, ssks: above right), but I will need to try a substitute on the next lace project that I start. Maybe I'm just doing them wrong? Hm...
Detail-oriented viewers will note that I did not use the elaborate, loopy edging for the cast off. I tried it - a number of times - but never liked the final result. My alternative was to use a #13 needle for the cast off, and just cruise straight across. I'm entirely fine with the final product, and hope that grandma will like it too!
The Dream in Color Classy is a lovely yarn. The yardage is great for the price, and it's handpainted! No irritating pooling, and it did seem reminiscent of a deep seaflower.
(Also, the job is going well. People are lovely, etc., and I think that they'll keep me.)