Cast on the Fly?

[Keeva]

I've been reading 9th edition to get myself re-familiarized with everything. It is going to be a long road for me to remember to say the point of value after a healing spell, especially since all the values have changed... Thank god the incant for death spells... err life spells hasn't changed.

But anyways Cast on the fly here or memorized?

[That Guy]

As per 9th ed cast on the fly

[Luthor]

I was going to ask the same, technically as per 9th ed rules it can go either way, it just depends on which way the chapter watns to go.