When I "birth" a quilt, I take a corner and roll it towards you. Then reach inside and pull the roll out. So much easier to turn right side out than trying to pull the whole quilt out that little opening. Also on the side where I leave the opening, I sew a 1/2" seam, then I trim the batting at the opening down 1/2". This way when you stitch the opening closed, you dont have the bulk of the batting to deal with and also it is nicer to tuck in the 1/2" seam than a 1/4" seam. I dont think I would be successful doing FMQ after it is turned. I only birth quilts on ones Im going to tie.