6.0.2 Holy- Sanctified Wrath Combo with New Glyphs

[Naethigan]

I have not been able to find any discussion on the combo of the Glyphs of Divine/Merciful Wrath and our Sanctified Wrath talent.

I understand that in the madness(mana being a joke) and nature(we aren't level 100) of the pre-patch its hard to really tell how these combos could work out. But I know there are a lot more people here and otherwise that are more intelligent than I that could speak to the strengths or weaknesses of this combination. And to be quite honest, Im not sure if Merciful Wrath reduces only the duration, effect, or both of Avenging Wrath. Which would obviously play a part in the Glyph choice.

Any insight at all is welcome!