I quilt my own quilts. I use hand guided pantographs and there are no open spaces that are more than 2 square inches, most are about 1 square inch. Every once in a while, even though I measure and think I have everything good, I get a surprise when I get down to the last roll of the quilt or sometimes, even on the sides. At that point, if the last border is a print, I just fold (small darts that aren't sewn down until quilted) and quilt those boogers down. You can't see them or find them. Sometimes, it's four or five of those folds because I want the fullness distributed across the quilt. Now this is only for utility quilts. If it is a special one, then I would take it off the long arm and fix it.