I've never stay stitched the edge of a quilt before...but I do have one with a piano key border and am considering doing so now -but I have a question: if you stay stitch the edge, how does that affect when you need to 'ease' a bit of fabric between the stay stitched piece and the next border? Most times my measurements are close but not perfect, and so I do the method where you make 3 measurements on the quilt and make the border the average of those. This usually means easing one or the other of the pieces to make it work. If one edge is stay stitched, will it be 'flexible' enough to allow easing?