And I thought I was blind on warlord, thanks for confirming :p.

Just tested RJ without points into GotEM and it was adding a stack of Deep Corruption. This is the log that shows this (hopefully - raiding at the moment so I can't verify it but it should be around that fight).

EDIT: I guess the logs don't properly reflect what I'm saying because I didn't get it past 5-stacks.

EDIT: So I did a bit of digging and I believe this may show proof that RJ without GotEM is indeed giving one stack.
I removed Vampiric Embrace as well pruned a bit of unnecessary information. I've bolded the relevant parts which includes 4 Greater Healing Wave, 1 refresh of Earth Shield (I don't think this causes a stack as it didn't cause any damage), RJ, and Deep Corruption removing from Hellobully and causing damage. You can see that my RJ didn't do any initial heal which means there was no GotEM (further proof here). Please refer to this log and the following queries if you wish to examine the entire log for yourself:

- Show events where spell is Deep Corruption
- Show events where event type is one of Heal, Spell cast and target is Hellobully

Also noteworthy is that Beacon and LB blooming didn't add a stack.

Firebloom applied a stack last week. It was confirmed during one of our wipes when we were trying to figure out why people were randomly exploding (we had 3 resto druids in that raid at the time). Nice to hear it was fixed if that's the case.

I've been thinking about the Ultra healing topic a lot. My guild is strict-10, so my discussion is limited to that format.

For healing at the end, I think that the best crystal combo for your 2 healers is Green/Blue. Red is nice, but it simply doesn't give the fast healing needed for the 5:00+ mark and doesn't duplicate healing to every member of the raid like Green does. Let's assume you're all going with Green/Blue. If you give Blue to a druid (replacing his Red), his HoTs will tick faster - but he'll still have to spend 1 GCD per HoT, excluding WG. This pales in comparison to the 5 people that a priest can heal per GCD with the Blue crystal and the "God I hate you" spell that is Holy Radiance. The only case for a druid getting Blue seems to be if you have a resto shaman as your other healer: they experience a similar GCD-per-target limitation that a druid does and get a better benefit from Green than a druid. See Hidden's table above.

The deciding factor in my analysis, however, has been Tranquility. 5:00+ is all about chaining CDs to let you catch up with the massive damage going out. The CD we bring to the raid, Tranquility, is different from every other CD (aside from Hymn) the other classes bring in that it benefits from the crystals. Blue would just speed up the channel time and give it a few extra ticks, but Green duplicates the Tranq and distributes it evenly to all other members of your raid. What's better than 1 Tranq? 2 Tranqs that are distributed evenly (and effectively) to the raid.

Although other healer classes might get greater percentage benefit from Green than druids (see Hidden's table again), the fact that Green boosts a raid CD in such a massive way at the critical part of the fight (5:00+) has me convinced that Green is best for druids.