I'm so sorry about your cut.
I was demoing the Quilters Slidelock at our guild meeting. An older guild member told other members that she had never gotten cut with a rotary cutter and never would because she knew what she was doing and spending that much money for something like that was foolish. At a sew day an ambulance had to be called to carry her to the hospital to get stitches from a bad cut on her hand from a rotary cutter. She had serious complications with the cut healing. She still has problems with her hand and can't do as much quilting as she use to. I always tell anyone that it isn't a matter of IF but WHEN you get cut. Please always use a safety tool when using a rotary cutter.