I've been using Muzzy 4bl 100gr bh's since my sheep hunt in March. I have shot one sheep, one hog, and a raccoon with them. Neither the sheep or hog left a spot of blood. The sheep ran about 50 yards and fell over. The hog was never recovered, but the shot was high in no man's land. I understand shot placement is 99% of the game, but my muzzy blades out of the package do not feel that sharp, shave, or cut rubber bands. I could switch to montecs or razorcaps, but my muzzys group with my field points and I like having the extra blade. Not to mention I don't want to spend another 30 bucks on broadheads. What is the best way to sharpen the replacement blades? Or is this futile and I need to switch to a fixed 3 blade head?