our group kills golems in green > red(switching to blue shortly after the green is killed) > blue order(but it is switched to red when 2-nd golem is killed).

In a single-tank group, MT grabs green, WHM grabs red and SCH grabs blue. We needed this to have as much dps as possible for green golem back that days without the echo. Yes, with 1 tank group. Yes, we had some issues with dps.

So after 2-nd golem is killed, whm is already free for healing and stoneskinning for heavensfall.