It fits! I was mostly concerned about the arms because my brother's rather muscular thanks to the amount he plays baseball and the physical labor job he's got. But it does fit him quite well.
My brother though, he really should be a model.
I think he likes it:
I made him sign copies of the rules and copied all the blog entries on the sweater and the email I sent to my family with pictures of the sweater. Then I blew up the photo I took where I spliced his head onto the sweater. And I bound it all up. I'll bring a copy to SNB this week.