HybridMana Cost choose before Cost Adjustment

From 601.2b:

> If a cost that will be paid as the spell is being cast includes hybrid mana symbols, the player announces the nonhybrid equivalent cost they intend to pay. If a cost that will be paid as the spell is being cast includes Phyrexian mana symbols, the player announces whether they intend to pay 2 life or a corresponding colored mana cost for each of those symbols.

That would help with other Cost Adjustment if the ManaCost is already "normalized"