New to Curtana / Holy shield Novus

So I'm rapidly approaching my quest for Curtana & Holy Shield Novus, with just a few books away, and me wanting to be well-prepared.

With that in mind I am aware that Curtana is split 53, and Shield 22, and that Accuracy caps at 31 while Determination caps at 22 for the Curtana, and 13 / 9 respectively, for the shield.

Now the question comes in, I am aware that for other weapons, the different tiers of materia in terms of Acc goes 11,11,11,11. For Det it goes 7,8,8,8. What I want to know is, "How does it split for Curtana and Holy Shield for both Acc and Det?"

PS: Sorry if this has been answered before but I'm unsure of where I'd find the answer.

You look at the maximum of that stat that can be added to the curtana or shield and divide it by 4, and each tier is that value. You see the max of each stat if you try to infuse the scroll (even if you don't have alexandrite or materia, you see the maximum.)

If the number is not exactly divisible by 4 I think it would work with the first tier/s less value like 7,8,8,8 (the 7 is the first one, not the last, so you need more of the expensive materia, not of the cheaper one.)

All in all adding the shield and the curtana you'd have about the same tier materias that you would have if they together were one weapon, with the differences of having to have entire numbers.

acc/crit
Sword: last 8 upgrades are tier 4
Shield: last 3 upgrades are tier 4

det
Sword: I can't remember, but i want to say last 4...
Shield: last 3 upgrade

tiers 1 to 3 are cheap anyways, may the RNG be ever in your favor...