Just sat here thinking I must send them off, but I am sure I brought 2 sets with the clippers, which was in 2002-ish, I don't clip loads, but they have probably done 1-2 a year, so have likely been sharpened every 2nd or 3rd year. I know I brought another set of blades about 7 or 8 years ago (so have 3 on the go) but have no idea which ones are which, would you expect the sharpening company to tell you if they were beyond a decent sharpening?