Originally Posted by
Koor
Yes don't wait for UE, use it if you can have it ready in time before the screech but if it's on CD or the GCD will enter the time between screeches and prevent casting HR, don't use it and cast HR without UE.
When I did 10 mans, I used riptide blanketing with rushing streams. I think Ancestral guidance can be viable here too due to the short cooldown, but I didn't personally use it. One problem is that if the kite phase is too short, 3min cooldowns aren't up again for the second acceleration phase -- AG can help there if you lack healing and the phase is too short.
Another option is to extend the kite phase so that 3 min CDs will be up again but that's harder in 10 mans, in 25 mans we use multiple lock portals for that.
In 25 mans I switched to conductivity/CH since I felt rushing streams is weaker (2 people in 10 man cover 20% of the raid but only 8% in 25 man), and there aren't enough GCDs to keep riptide on all 25 people. We also have several palas in 25 mans for devotion auras / BoP, allowing more CH casts. But some are using conductivity in 10 mans as well with good results.
In 10 mans with riptides I didn't need BoP -- ascendance was strong enough with the healing rain and riptides ticking, didn't need stronger healing while ascendance was up. I don't know enough about disc priests, ask him if he can utilize it better. Another option is to save it for a DPS player on the bats so they go down faster.