Hey everyone, I typically use the yellow Feather D.E. blades (not sure the difference between those and the black/red ones but as a gift I recently for the Gillette Heritage travel kit. In the kit it came with a 5 pack of the platinum blades. On the blades the logo was black on both sides with the letters filled in. I also purchased a 100 pack of the platinums and the logo on the blade is just the outline and only on one side. Is there a difference? If you need more info, I can send pictures of anything