The best method for testing sharpness is not the common "shaving" test of your arm or back of hand. The best method is to take a rubber band, stretch it tight, then GENTLY brush the blade across the band. The band should snap instantly without applying too much pressure. Test each blade in this manner.
Rubber bands simulate arteries. Arteries stretch in a similar fashion, in fact. The key to effective bowhunting is to inflict massive bleeding. The only way to do that is through the use of scalpel-sharp broadhead blades. Most deer that are lost (killed but not found) each year can be attributed to dull blades.
Daniel E. Schmidt, Editor, Deer & Deer Hunting