@paula englander Jennifer's whole cardigan turned out smaller than she wanted. But then it did stratch out a bit. Mine turned out too big and then continued to grow. I ended up putting it in the dryer to purposely shrink it. Based on this, I would be tempted to leave the sleeve and block it. Maybe it doesnt show up in the picture, but it doesn't really look that tight to me...
Finally got to Rix in Montreal to find perfect matching buttons. Because of Covid restrictions I had long time to wait for it.

@Elisabeth Kaufmann They are perfect!