I have done this with all of my sized BG AIOs and they make AWESOME sized pockets. Once you rip out several stitches with a seam ripper you can just pull the insert and suedecloth apart and the stitches will rip out. So it's not as tedious as you think!
Sarah, loving wife to my wonderful husband, G. Mother to sweet and spirited DS N
(07/08/2010) and DD H (07/03/2012)
. Love fluffy mail!