Well Doofoos, feel happy because I spent quite a bit of time looking into your build. I was intrigued and didn't want to get myself in hot water by saying something that wasn't true. However the consensus on the internet proved to be correct again. Bottom line is play what you want and what works for you. However your build is not optimal because Regrowth as a spell is not optimal for raid spamming.
https://docs.google.com/spreadsheets/d/ ... eg/pubhtmlValues were obtained on my alliance druid with 0 and with 633 heal and a total spell crit of 7.63%. I used the addon called TheoryCraft which allows me to look at healing values and also input theoretical talent changes to see how values are modified (so I didn't have to respec 4 times). The values in the spreadsheet are average and DO include crit into the average heal.
I started out with base spell capability and put the values on the left. Initially I was surprised cause regrowth looked decent. Not great, but decent. Then I added my full healing gear and you can see how the values really pan out. Now you can compare original no gear to full gear. Realize that there is a lot more +heal that can be gotten. Obviously all numbers will go up, however you can see some increase a lot and others not so much. That trajectory will continue. Especially look at healing touch rank 3 and 4. Both of them increase by over double their initial values! By this level of +heal regrowth has already fallen behind and has not yet doubled like healing touch.
I am not going to turn this into a 3 page dissertation about why we downrank. There is a lot out there to see. Bottom line is that you should see the efficiency of the spells at the end by looking at the heal/mana. This tells you given a certain amount of mana how much health you could restore under ideal conditions. Bigger is better.
Moonglow spec Healing touch rank 3 is almost 9.6 health per mana.
Regrowth spec healing touch rank 3 is 8.7.
Regrowth spec Regrowth rank 3 is 5.3. This is only slightly better than rejuvenation!
As a spammable spell, this is a far less effective option. Even feral hybrid spec (the lowest of the 4 on average) has a healing touch efficiency of 8.5. So let me iterate what may not be the obvious point. A feral hybrid has the capability of healing more than a regrowth spec if they heal with healing touch and you heal with regrowth.
Points to be made: The values are ideals. This makes the regrowth numbers in real life so so much worse. I added both the heal and the hot together for efficiency. This presumes that not a single part of the heal is wasted. This is so far from the truth when healing in raid happens. I'd bet at best half of that hot is lost, not to mention some overheal of the basic heal. Probably the reality is that 80% of the hot would be lost. It effectively makes regrowth along the same heal amounts as healing touch rank 3, except it's 3 times the mana cost.
Second point: you are obviously trying to stack haste so you can make regrowth super fast. That's great, but it still will max out at 1.5 seconds cause that's when you hit the global cooldown that all spells are affected by. In exchange you are losing out on swiftmend, full rejuvenation capability, one point in gift of nature, lack of interrupt, and lowered threat. This is just not worth it at all. Just do a swiftmend build. It's more efficient with stronger heals. All you lose is the crit spell haste.
Last point:
https://xkcd.com/386/PS Play how you want with the build you want. Enjoy it. I don't care. I play the feral hybrid build so I know I am less than optimal, but I enjoy tanking and easier grinding. But it is important to know what you lose because there is optimal and not optimal.