[Caspian]

I'd also suggest adding a word of warning against discriminating between "IT" and "IT++" mobs. Whether or not a mob will check as High Defense and/or High Evasion is greatly impacted by your weapon skill. Players who have weapon skill far below cap (e.g. most mage classes) will almost always see IT mobs as IT++.

I was once acting as a puller in the Dunes. The very opinionated WHM in the party was very insistent that I only pull IT crabs, and not ones that were IT++. I did exactly as I was told, only to have the WHM complain that I ignored his instructions (since his club skill was low, the mob appeared as IT++ to him anyways).

Its also influenced by your food and gear with +/- attack and accuracy traits.