"A Surge of Theurgy" question.

[Davus Antonius]

I have a question about the feats in this article. If a character had more than one of these feats say Aligned Theurgy and Elemental Theurgy, how would a caster level of a spell that meets both feat requirements be calculated? An example character is Wiz 3/ Clr 3/ Mystic Theurge 2 has Aligned Theurgy (Evil) and Elemental Theurgy (Cold), so what would his caster level be for a Corrupt Cone of Cold since that is an (Evil)(Cold) spell?