May I ask why do you use the 60 mm blade? I have 3 Olfa 60 mm cutters which I probably use a couple of times a year, I recently used it to cut headliner. I used to use them daily years ago but then Shar Jorgensen got me to try out the 28mm and I feel less strain on my wrist. However, like everyone else said you have to try out the individual cutter to find what suits you.