The Bloc-Loc HST is da bomb! It does exactly as you say. I put it on, make the first cut, spin, cut, repeat till done. I use the rotating mats a lot and have a few of them...with those and the Bloc-Loc...best ever. Works on QST as well. I bought the 2.5, 4.5, and 6.5, but I'm adding the other and the big 12.5 as well. They aren't inexpensive, but one of the best investments ever.