So how important is this breakingpoint?
If you can achieve the 9th WG breaking point while replacing your +80 Int and +160 Haste with 320 Haste rating gems and also reforging all of your secondary stats to Haste is it worth going for the breakpoint?
How much % in increased healing are we going to see?
And is it even smart to reforge all of your Mastery for it as a raid healer?
I don't think losing 3500 mastery (or even worse, some int) is worth it. But personally I use SotF most of the time, so that breakpoint isn't for me anyway.
The 9th wild growth tick is only going to be worth it when you will still have a significant amount of mastery on your gear while achieving it. This is not possible in the current ilvl of gear with spirit being the strongest until you have the mana to sustain the fights. That breakpoint is worth 12.5% increase to wild growth and the ground effect portion of swiftmend, but is pretty much guaranteed to cost you the difference in mastery which will do more as it is applied to all of your healing.
The only way 6652 can be worth it is if you can achieve it without sacrificing int or mastery. Even then you would need to be gearing specifically for haste, getting pieces that have only haste on them in multiple slots. These slots would be better off having all mastery.
The best way to go about having superior healing power is to maintain 3043 and dump everything into mastery. If there comes a time where even reforging leaves you significantly over the haste cap and you have geared properly (not every slot as haste) then it is worth considering going for 6652.
i'm at 6652 haste atm, reforged shit and got a few haste gems, it's not hard to do, i don't feel like i lose anything from doing it at all. maybe i just don't care too much right now