What kind of condition is your cutting mat in? I have always used the Olfa mats but last summer I came across a very large Gingher cutting mat still in the original package and it was such a steal, I bought it. I can't stand it! It doesn't self heal as well as my Olfas and I wish I had saved my money and added some to it and bought a larger Olfa . Not my most costly mistake but definately one of my more frustrating ones.