I have never sharpened my own blades. Bought a new set and put them on tonight. Learned a lesson that its NOT good at all to run over small branches and stuff because my blades are chipped up. I am going to try and sharpen my own blades and see what happens. Does anyone have any suggestions about this? I have 3 blades and they are about 18" long. How important is the balancing of them? I have seen them sold but wasnt sure if i really need to buy that or if someone has an idea for a homemade idea of one if i really need it. Here is what i was looking at using: http://www.homedepot.com/h_d1/N-5yc...splay?langId=-1&storeId=10051&catalogId=10053 I am not a huge company. I only have 6 yards and about 3 acres a week that I cut. Thanks and hope I can get some good pointers.