|I am normally a rotary cutter bigot, but today I found a real drawback. When cutting slinky, and perhaps other very "slithery" knits as well, you will get much better results if you use sharp shears for cutting the fabric. I used my rotary cutter, with a brand new and very sharp blade, but the fabric moved under the blade and slid around as I cut, producing a jagged edge. When I switched to my shears (which are really, really sharp!), I had no distortion of the fabric, and got a much better cutting line.