Very little is more frustrating to an archer than firing a well-aimed shot at
his target, only to watch the arrow burst into splinters on a helmet or
breastplate -- or, worse, a stray piece of jewelry that happens to be in the
way. This skill trains you to selectively aim at parts of the body that are
not covered by armour, without lowering the odds of a successful shot. In the
case of full coverage, this skill helps you find chinks or gaps between the
pieces, which is much harder to do.