An update on HC Garaj'al. It seems that indeed HoTs refresh the timer whereas bigger spells (either GHW or HS ) will add stacks. It mainly has to do however with how big the spells throughput is compared to the previous one, so knowing your targets and applying riptides on them before entering the realm seems the way to go.
On the discussion about Ascendance. Everything depends on the fight, the situation you find yourself in and your healing assignment. Like it was mentioned some options will require more mana but the decision between HPS and HPM is one tough choice healers always have been faced with. The most valuable information that restos can take is that Ascendance is dynamically snapshotting your stats meaning it dynamically changes depending on your stats and is affecting every healing spell in the same way as well. Pre-casting or pre-hoting is therefore recommended.
Some options on spells and on the question of what spell to use there already exists a very good analysis at
#15
I will bring up the table that interests us below :
| Spell | Buff | HPM 0% Crit | HPM 0% Crit + 2PC Bonus | HPM 10% Crit | HPM 10% Crit + 2PC Bonus | HPM 20% Crit | HPM 20% Crit + 2PC Bonus | HPS 0% Crit | HPS 10% Crit | HPS 20% Crit |
|---|
| GHW | No TW | 3.183 | 3.537 | 3.934 | 4.371 | 4.776 | 5.307 | 23568 | 27528 | 31485 |
| | TW | 3.183 | 3.537 | 3.934 | 4.371 | 4.776 | 5.307 | 33581 | 39223 | 44861 |
| | | | | | | | | | | |
| HS | No TW | 2.058 | 2.058 | 2.468 | 2.468 | 2.899 | 2.899 | 32333 | 37765 | 43197 |
| | TW | 3.355 | 3.355 | 3.837 | 3.837 | 4.348 | 4.348 | 48628 | 54061 | 59492 |
I don't yet have an analysis on Riptide VS Chain heal HPS VS HPM however since Ascendance only lasts for 15sec I personally would prefer bringing up TW by using Riptide rather than casting a long CH. I will put this on my ToDo list if anyone would like to help with that I will welcome any numbers.
Judging from the table above we can see what spell to use and in what situation between our "heavy hitting" options. (Assuming we have already layered down HR and pre casted Riptides appropriately). Depending on how much efficient we want to be with our mana or how much more throughput we want to bring to the table GHW (above 10%crit) is always going to be our most efficient choice whereas HS our best throughput choice. Notice however the change between our spells being buffed with TW or not. While the best throughput will always occur when TW is up, GHW with TW and HS without TW HPS is almost the same. In a twisted way we can say that HPS wise it will be the same if we chain cast HS without TW as if casting RT-GHW-GHW-RT-GHW-GHW etc.
Again there is no "best" way to use Ascendance. What is best will always be dictated by the circumstances that the fight finds you in and what you choose to do with your efficiency VS your throughput. In a world where mana wasn't an issue chaincasting HS either with TW or without would probably be the most viable option. RT-HW-HW would always be your most efficient one.