I am not new to plotters,but new to the SC cutter. I recently purchased one as a back up to replace my old MH cutter as my back up. I wasn't expecting this thing to be a top of the line machine, but I did expect it to be better than my MH, but it certainly is not. If I try to cut above 100ms the blade holder will stutter as it cuts. even cutting as slow as 200ms it stutters.