I saw this on a video and thought it was a genius idea. Man, do I wish we would've had this back then for all the door frames cutting and the toilet. We moved to another house with mostly carpet and are getting ready to do it all over again, but this time around we are getting a major help with the contour gauge. We did a little trial test with a door frame, what a dream, after the cut it fit like a glove, no more cutting the same piece just bits at a time for a perfect fit. Just one measure, one cut, perfect fit, it doesn't get any easier.