wrap sweater from Fitted Knits

I finished the Airy Wrap Sweater from Fitted knits. I didn't modify the pattern too much, except that instead of mohair I used a silk/alpaca blend (I didn't want it too fuzzy); and this yarn had a really nice but subtle sheen to it. I also knit the sleeves in the round, sort of on accident, because I didn't realize that you weren't supposed to. I don't think it matters either way, except that you have to go back during finishing and fix a hole in the armpit created by knitting in the round. Oh, and I also had to figure out the cable pattern at the end of the sleeves for knitting in the round, but that wasn't too difficult. The cable pattern at the bottom edging was the hardest part for me - I ended up taking it out and redoing it 4 times. The directions say something like "continue cable pattern as established" but I couldn't figure out where exactly in the pattern that was. Ultimately I think it came out really nice, and I'm proud of it. The sad thing is that it doesn't fit me, but it's almost like when you spend hours cooking a really extravegant meal, and then, being so exhausted by the meal preparation you don't even feel like eating it any more. There's got to be a word for that. Anyhow, Mom - how would you like a sweater? I have a feeling it would fit you perfectly.
Here's a question - block before finishing or after? I've always wondered which is better. Or is it a project-by-project decision?