There are even dies that will do the cutting for you. I don't own them, but I think they're a great invention. I make my rag quilts with 3 layers of flannel, no batting and no quilting. I love the spring loaded scissors, but it is time consuming cutting all the flannel after putting the quilt together. I'm just not sure it would help me to make the cuts before assembly, but if it helps you then that's great. We all find different ways to make quilting more enjoyable.