I was just wondering if anyone rotates their mower blades from one side of the deck to the other when sharpening them on multi-blade mowers? I've noticed that the right side and center blade always have more wear than the left one when I pull them off for sharpening, presumably because they process more grass as it moves towards the discharge. I've never worried about it and just keep them in sets when I sharpen and reinstall them and put them on randomly. I'm thinking that I could get more use out of a set if I put them in rotation but I'm not sure it's worth it.