I finished my sister's featherweight cardigan on Friday but then had to redo the cast off edge of the neckline on Sunday after waiting for it to dry from the first blocking. I believe I did the cast off edge over a two day period and when I picked it up on the second day I guess I just cast off with tight stitches.
No amount of blocking could fix that. I'm pleased with the way the cardigan turned out and I hope my sister will be as well. This is her requested Christmas present - to finish her sweater and I succeeded.