I have not even seen the larger ones. I own a 1/4" slot one which I think is just about useless because it tends to wobble. I use the 1/2" one for almost all of my basic cutting. I am on my third one, because they are a bit on the flimsy side. One of my guild sisters commented recently that I have an unusual style of cutting, due to wrist damage. I wrap my fist around the cutter, little finger down. Most rullers are not handy for me. This one is perfect for me, whether I am cutting strips, trimming HSTs or half hexagon units.