Haven't looked at your logs but unless something is going horribly wrong, the biggest issue (at this gear lvl) is you have too many healers. Either have a healer go dps, or pick up 2-3 more dps. Healer light (less than 1 per 5) is better than healer heavy on this fight. Also have people pop their CD's (3 min or less) at the start so that they save mana/do more dps and have them back up by the soft enrage.