Quote from Darkboy132;1174777:
Why?
You already get enough defense from masteries and strength. You're gonna be at a point where elite mobs will be hitting one on you, so you really shouldn't need more defense. You'd be better off increasing damage, and if you're gonna increase damage through heavy armor, might as well use the one that actually gives you a boost in damage.
Sure Royal Knight Armor gives you nice stats... but let's take my case as an example. If I were to use thames (which I almost never do, but sometimes do it just because) in elite missions, those mobs are hitting ones on me (maybe 20 on crit). The only time where def/prot wouldn't matter are the blinker beams and the dullahan axes, in which case Royal Knight Armor would be useless as well. Since I have enough defense already, what would I choose? An armor with no effect (besides ping which doesn't really matter thanks to masteries, as well as high defense) or boost in smash damage? I would choose the latter.
If you are using Royal Knight Armor as fashion, I'm not stopping you from wearing it, but I wouldn't upgrade it so that you can sell it if you want (Since it is fashion).
Looking at your gear, I'd highly recommend selling the armor since it goes for good money, and use that money to get some decent enchants as well as special upgrading/reforging. You really need a gear renewal in my opinion.