Morning Ladies
I would like to add three things to help make your cutting more than one block at a time possible. First, startch your fabric really stiff. That helps take some of the stretch out of the fabric. Next, make sure your rotary blade is really sharp and not dull. Third, you can buy small circles of fine sandpaper that sticks to the back of your ruler so that it doesn't slip. Also being a woodworker, I just use regular self-sticking fine sandpaper and cut my own strips or dots to glue to the back of the rulers.