I put it off because rotary blades are expensive. It seems when I take off a dull blade and put on a new one, something happens and I end up with a thread hanging on when cutting.
My rotary blades don't work well on more than 4 layers of fabric, even when new. I do have an accuquilt cutter for the more commonly used shapes and strips. That saves me a lot of work, which is important now that my hands and arms don't work like they used to!
