Recently performed a dozen shaves with 4 Topaz blades ,2 Sputtered Platinum ,and 2 Stainless.Razors used were 66 Superspeed and a British Parat.12 different creams and soaps were used to test these 2 blades.Several years ago I posted my thoughts on the Topaz blades from China,not counterfeits,but an authorized product.They were the worst blades I have ever tried (see photos below)....The stainless costs less than the Platinum,but I actually got just as good a shave from it,as I got from the Platinum.I got 3 nice shaves from each blade,no cuts or nicks.You don't see these all that often,but if you find them as cheap as let's say "Sharks",then I will say they are a good economy buy.