I bought a set of six Muzzy broadheads two years ago and kept two for practice shooting, three in my quiver for hunting and one spare at home. I have not had an opportunity to shoot a deer so the hunting broadheads have never been used. Are they still sharp enough after two years for hunting? If not, why and what should I do (sharpen or buy new blades).

What made me think of this is, my shaving blades sit in my travel kit for a year and even though I may have only used them once or twice, they don' t seem sharp. Not sure why, but seems to be the case.