Just goes to show how subjective blades are. I love them both but for me the Rubies are slightly smoother. Anything made in St. Petersburg is fine by me but anything made in Moscow is bloody awful. It's a funny old game.I'm going to add, maybe a bit controversially, Polsilver SI. Bloody awful things. If mine were a bad batch or whatever, don't know don't care, won't be buying them again, especially now I've discovered Gillette Rubies.