I pace myself with cutting. I have the 45 mm. Olfa cutter but find I reach for my smaller cutter often. The handle is smaller and shorter and the end fits in the palm of my hand for a better grip. It also helps if you put a couple of squares of rubberized shelf liner under your cutting ruler on top of the fabric. The shelf liner prevents the ruler from slipping and you can use less pressure to keep it in place. Take some Tylenol and let the hot shower loosen up your arm and shoulder muscles.