Front of Center, single bevel/double bevel, sharpening jigs? Micro diameter-5mm 4 mm? What is going on? I leave it for a few years and the world goes crazy! I had just heard about mechanical broadheads and now they seem to be obsolete. Oh well, i just got 2 packs of the same broadheads i shot in 1992 -muzzy 3blade. Time to hunt lol