Gator Blades! I'm on my 3rd year with mine; I sharpen them with a flap wheel about every other cut. They are quieter, pull the grass up more and mulch very well. If you're so inclined, keeping the vanes or fingers or whatever clean and well defined helps a lot with the cut quality. I don't bag and don't have the mulching kit- works great. I have the original blades as spares... somewhere.