Ok folks, put a scratch in my Carbon Blades yesterday! Gutted to say the least. I have heard that scratches can be removed with mild non abrasive toothpaste? Did a search and yes it does seem correct. My CB's are the Grey Matte Black model, so no iridium coating, I believe? I was gonna try it on an old pair but thought, sod it, bit the bullet and tried on my Carbon Blades, no messing about! The good news is, it has worked a bit after two applications, the scratch is less visible. I will be having another go as soon as I get home.