http://www.wowhead.com/profile=21426879#inventory
Basically, I've read the topic here on Arms Warriors, follow the priority rotation (Rend>MS>Sudden Death>Overpower Proc>lolstorm>Slam, although SD and OP don't always get used in the right order), and still only pull roughly 3.5-4.5k on boss fights with (according to Gear Score) a 5.5k GS. Knowing it's this high, I KNOW I should be pulling more. Is it the fact that I'm missing an ArP trinket to get me ArP capped? Is Arms really that gimped and I should go Fury? Or am I just doing something wrong?
(Arms is my OS. Assuming I dump the money, honor, or emblems into Cardinal Rubies, my ArP raises by 105, or ~7.50%. 2H Massacre is also taken over Berserking for the same reason.)
tl;dr I'm cheap and don't get the best for my OS, and do sub-par DPS. Is this an ArP issue, spec issue, or player issue?