I've used t his method for a few years, although I didn't realize it was called power cutting. I don't remember the quilt teacher that mentioned this type of cutting, but she did the same, if you need the same size strips, cut as the woman did in the video. I have found that it indeed makes for straighter cuts, more quickly, which comes in handy when I am making quilted items for sale, like table runners, placemats, etc. Thanks for sharing the tutorial, as it refreshed my aging memory.