The only difference in the blades are the center cut out. The blades are all made from the same metal. Some are coated with teflon like the Gingher blades. A titanium blade will last for years but will cost a house payment. LOL. Mats are either hard surface or self healing. I prefer the hard surface but use both types. Don't fret over stuff like this, you'll go nuts. Just use what you like and forget it.