I just finished my 10th excellent shave with one of my remaining 70’s Gillette Spoilers Super Stainless blades. I was using it in my Gillette NEW Short Comb. All ten shaves were smooth, close, and nick free. I never had even a hint of a tug. They did know how to make great blades that lasted. I believe they intended for them to last a full week. Prior to this run I had used them for 7 days.