I am trying to spruce up my hawkbills edge before turkey season. It stands to reason if I bought a 20 dollar byrd knife I am not going to go spend 60 on a sharpener. I have a lansky system with 3 stones that works ok for my plain edge knives. Are there any cheap ways to sharpen the curved serrated blade, as in less than the price of buying a new knife. I was thinking a welding rod would fit the larger serrations nicely.