Doesn't RDM's AoE Seem Backwards?

[Maeka]

-snip-

Whaaat? Why would you wanna do that?

Veraero II/Verthunder II gives 7 of one mana, while Impact gives 3 of both.

It works out perfectly.

Veraero II = 7/0
Impact = 10/3
Verthunder II = 10/10
Impact = 13/13
Veraero II = 20/13
Impact = 23/16
Verthunder II = 23/23
Impact = 26/26
Veroaero II = 33/26
Impact = 36/29
Verthunder II = 36/36
Impact = 39/39
Veraero II = 46/39
Impact = 49/42
Verthunder II = 49/49
Impact = 52/52

At this point, you could use Manafication and get 100/100 Mana (you'd be wasting 4 of each which isn't that bad) for your 5 Enchanted Moulinets, or you could go through the whole process again, reaching 100/100 with the last Impact not necessary (do the 5 Moulinets and then spend your Dualcast).

And as other players pointed out, Impact has a greater potency so you might as well use it rather than only casting Thunder/Aero IIs.

EDIT: If you don't wanna waste 4 Mana, you could instead, stop at 49/49, use Manafication and then throw the Impact but I feel there's not really any difference in doing that to be honest. Unless you used one of your Moulinets and then threw the Impact. You could perhaps do that.