I use the warm and natural batting. I tape the backing tightly to a large group of tables at our church, spread on the batting and then place the top on. I usually pin it, but do not close the pins......after the whole quilt is pinned, I untape it and flip it over so the backing is up...Gently, run your hands from the center out and see if it is smooth at each pinned point. If not, remove the pin from the front side and smooth the backing and repin. It seems like a lot of work, but I've have great luck with it so I don't have tucks in the back. Ruthie