
Originally Posted by
Dread
The amount of misinformation in this thread is staggering. It's as if the majority of people are just spouting off ages old rumors as fact and haven't actually tested anything themselves. I have personally tested the effects of using gear under the recommended rank, and the notion that you are sub-par by doing so is unlikely at best, and flat out wrong in some cases. So here are some of the cold hard facts I've managed to collect on the matter:
FACT: Using a weapon with a much higher rank comes with the disadvantage of severely increased durability damage rates. However, both attack and accuracy are generally the same, or *better* than a rank appropriate weapon. So as long as you keep the weapon repaired, you aren't losing anything but the gil required for the frequent repairs. Shields count as armor, as far as durability damage rates are concerned.
FACT: Using armor with a much higher optimal rank offers the same or *better* defense and avoidance as rank appropriate gear. As far as I can tell, if there is a durability damage rate increase for armor, it is very, very small in comparison to the weapon, so small that I couldn't even notice a difference while actively looking for it. Small enough to level a job 1-30 without needing to repair even once.
What I haven't personally tested in-depth are stat bonuses such as STR or VIT while using gear with a higher optimal rank. It is clear that they do not give maximum bonuses until optimal rank has been met. However, they still scale downward in rank and award smaller bonuses, increasing slightly as you level up, just the same as all other gear in the game. Until the abolishment of physical levels and the re-balancing of stats, it's likely you wont notice any difference whatsoever on stats awarded from optimal gear compared to gear in which you do not meet the optimal rank.
TL;DR?
Anyone who says that using gear far above you in optimal rank hinders your performance is *wrong*. Period.