Seem pretty skewed? I see a lot of same drops, when I ask others they see the same drops too. Given the large loot pools per boss, and skewed rates, it gets irritating very quickly..
I feel SE really needs to even out their drop rates and consider CT bosses dropping two chests. I wouldn't mind running it several times a week but having to run 12+ for one tank piece to drop (any one, not a specific one) is just ridiculous...
I find CT very fun, but it is often frustrating purely because of the poor/skewed drop rates