I finished the short sleeve today. I was determined to match the plaid and came pretty close. I did flat felled seams on the arm scythe and sides, which are less than the 5/8” allowance built into the pattern. The result was a bit of extra fabric where the arm, sleeve, and side sales meet. With some creative ironing and glue basting I was able to make it work on one sleeve, but the other was a mess. So I bar tacked and moved on.