I have used both freezer paper and precut papers for different projects. I like the freezer paper method better, but make sure you use quilters freezer paper. A friend used grocery store freezer paper. She left the paper on for awhile before removing and it changed the color of her fabric. She thinks because the grocery store brand wasn't acid free. I made a queen size GFG using quilters brand, left papers on for a couple of years and no color change. Maybe if you removed the grocery brand right away there might not be a problem.