You know Metal, the way you feel about the year 1937 is kind of how I feel about 1939, a year of mostly "good" shorts but not a lot of great ones, at least not until we get to the end of the year with Jules White starting with Oily to Bed, Oily to Rise, then of course not long after that we get to the golden age of the 1940s where Del & Jules were trading off classics in succession, but I'm sure we'll get to that when the time comes.
As for Sew and Sews, I think you covered all the highlights, but I have to make mention of Moe's line when he threatens to bust an iron over Curly's head & Curly has to remind him he had to pay for the last iron.
Also, this was the final short to utilize the "Listen to the Mockingbird" theme.
7 out of 10