Spoils is really about when you use your CDs. Are you paying attention to stuff like the Kor'thik Warcaller on the Klaxxi side, who enrages and does massive damage AND applies an armor debuff. If you are not using CDs on things like that, it will matter far more than what build you are using.
You can still post a link to your logs, just dont add .com at the end or just give me the name of the guild they are logged under and on what server in WoL (or WCL).
As far as your amory goes, if you have access to one use the stam trinket off of malkorok. It looks like EH might be one of the issues in play here, since you have no stam trinkets and are not using SSG. The more EH you have the more room you have to get RNG bursted by back to back to back swings from multiple adds, which makes a huge difference. More than even mastery. You can always switch back to skeers on the other fights you don't have problems on.