Quote Originally Posted by Zhamkyong View Post
I will let a ninja main answer that because I don't know about the specifications of the job, but generally speaking a soul crystal gives you not only the ability of that job, also a boost in the stats(can't recall now the amount). Anyway, by not getting it equipped you will lose abilities from the class 30-60. Cross class skills don't make up to them. If you are soloing play what you will, with players, please, don't do that.
More then you think they do.

Quote Originally Posted by Ryel View Post
Yes it's bad, no you aren't doing the same amount as a NIN.

No NIN means no Ninjutsu for starters which means:

No Huton = DPS loss
No Katon = AoE DPS loss
No Doton = AoE DPS loss
No Raiton = single target DPS loss
No Suiton = no Trick Attack = flat 10% DPS loss for the entire party each instance it isn't used.
No Kassatsu = no extra Raiton / Katon = DPS loss

You also lose a few OGCds and utility skills which are a decent amount of damage and party usefulness:

No Dream within a Dream = DPS loss
No Duality = DPS loss
No Shadewalker = Utility loss
No Smoke Screen = Utility loss

Oh, and no Armor Crush to extend the Huton you aren't able to use anyway because you're a Rogue.

The numbers aren't in your favor, at 60 there's no way you are contributing the same sustained numbers and utility as a rogue as you would a NIN because the game ensures that classes have no usefulness past 30.
So all that and yet people only use Huton? ok..