I use Med Preps, Lab Blues and Polsilvers in a rotation with a few other blades. They all give about the same shave but I find Polsilvers are done after 2 shaves, Lab Blues give 3 and with Med preps I've had 5 shaves with one blade, though generally I only use any blade twice. Rapiras are about the same as Polsilvers. I have a tough wiry beard and shave every morning and some evenings, so other people will get different results.