It is hard not to get pucker at intersecting lines. I kind of make a frame with my hands in my Machinger gloves as I go over those spots. I like Hobbs80/20 fusible quilt batt and lately I have been using the Elmer's washable glue. I always do the back fusing last making sure it is nice and flat. I give it a press with the iron to dry the glue also. It will look a little wrinkly on the front by doing the back last but since I can see the front while quilting, it works better for me.