Hey, Months ago I received some Astra SP blades that have blade labeling that is way different. The initial ones had black writing on both sides of the blade, but the more recent ones look like some kind of silver'ish laser etching on only one side of the blade. This gives me the impression that these were made with different machines and perhaps could even have been produced with a revamped process that may have changed the way the blade shaves. Does anyone know what has changed in the manufacturing process with these? I found this image on the internet from a reddit post a year ago. This is the same thing I'm talking about.