Since I use several different types of batting, I have all my rolls stored in a closet. I pin my backing onto my longarm, lay the roll of batting on the right side and roll the batting across the backing until I come to the end of it, then cut it off with scissors. Very easy and I've never had a problem with using the factory-cut edge on the top (I float the bottom of the batting in a batting sling made with an old sheet to keep it off the floor).