Originally Posted by
Swords
It works on the same system Accuracy and Magic Acc does. You would'nt notice much difference comparing 20 evasion skill vs. evasion, however do a comparison with 50+ you might see more of a difference.
One way of checking this for yourself would be subbing a job that has a skill your main does not natively have such as /WAR on RNG or RDM and equipping a Staff. Remove any and all Accuracy/DEX gear and go melee on some mobs that you would hit at reasonable but not high rate. After you get a feel of your accuracy rate, change your subjob to something that you have absolutely no skill in, equip accuracy and try and even out your accuracy to what your skill would have been with the previous sub. Go back to the same mobs as before and melee again and melee till you have a good grasp on your accuracy rate and compare.