I am a big fan of Hobbs 80/20 fusible batt. I use a dry iron to fuse my sandwich together for FMQ and it works really well for me. I lay my back down flat, smooth out the batt, and smooth down the top. Using my iron from the middle out, I fuse the front. I pick up and flip over the sandwich and iron the back from the middle out. The batt lets you peel up the fabric and re-iron if you get a wrinkle. I put a few safety pins round the edge so I don't accidentally peel up an edge. I wash my quilts to remove the guile for a softer, fluffier look. My wallhangings I leave the fusible in and do not wash. My wallhangings are 3 years old and counting with no problems.