Since gearing from i160 to now currently i186 I've found mp management to be less frustrating almost to a point of it no longer being a problem to me at all (In all end game content so far minus Alex savage since I play on a rather small server and pf groups are next to non existent on my server save lolunsynced pony farms). This makes CO seem rather useless but again I continued to find uses for it.For instance during moments where unavoidable raid/party wide damage is incoming and everyone always bunches together for AoE heals I find myself using AH then popping CO as the move hits allowing the regen to top everyone off in a few seconds before everyone scatters. My favorite 2 instances where I find it useful right now are in A1 during the jump and in A4 during the raid wide attack that happens between phases.