Seshat/Mana/Purple Stack effects

Question for the folks far better at understanding the math behind game mechanics than I:

In a purple stack, what effect does a 4/80 Seshat have on the speed of mana generation for other purple heroes? Ie, does a slow hero become avg speed with her 4 turns of mana? I suspect not, but I also suspect the troop level to make that happen gets reduced. Same Avg-Fast.

I assume running 2 Seshats gives little advantage as the specials would overwrite unless you cycled them - which if you did, does an extra turn, or two, make a huge difference?

3 posts were merged into an existing topic: New HotM Mana Generation Elemental Link – when would Mana Gain come into play?