I admit I haven't raided on Crota because all my friends ditched Destiny like the bad habit it is. I main on my Titan and my Warlock is a new human one, made to get the human grimoire card (I regret deleting my Exo Warlock as he had so much progress put in). Grimoire score, I'm missing 5 dead ghosts and some PVP bonuses. What do you mean "not optimised"