I purchased 3 different simmons broadheads thinking I should try a 2 blade since I do shoot a 49lb bow.I'm sure there has been threads on this but I can't find them.I even bought the sharpening system that simmons recommends and I can't get a good sharp edge.They certainly are not ready for hunting after 15 or 20 strokes on the system that is implied in the directions.I have even tried the file and my own methods but haven't achieved a huntable edge.Whats the secret?Or what am I doing wrong?