Fitting this jacket was quite a bit easier than I expected. When I put on the muslin, I saw several issues I was going to have to fix in the princess and side seams. And then Mikey walked over and pinched out a couple of inches at the shoulder. Problems solved.
That meant I had to remove 2 inches from the sleeve cap. I couldn't just remove 2 whole inches from the center of the whole sleeve. That would have been two narrow at the forearm and wrist. So I had to do a real ease adjustment to the sleeve cap.
Everything worked rather well. The armscye fits well. I was surprised considering how many muslins we had to do to get Mikey's jacket to fit comfortably.