Planning out supports....could someone verify/check my numbers?

[bookwormbabe29]

Hi all!

As the topic says, I am trying to plan out my supports so I can get as many "A" supports as possible. I'm using the list from the site found here:

http://serenesforest.net/fe9/supports.htm

It seems easy enough, but being my paranoid self I was hoping if someone could confirm I'm doing this right.

So for starters, I want an "A" with Ike and Soren. Soren joins chapter 4, so if you need 19 battles, then if I'm doing this right... if I deploy Ike and Soren every fight, they can have the A support conversation after battle 23, or on the base menu of chapter 24. Yes?

Or how about Mist and Boyd? Mist joins chapter nine, but I don't think that chapter counts (I thought they had to be sent out from the prep screen to count. Can anyone confirm?) So if her first fight is chapter 10, and they need 17, the earliest they could earn the A support is after chapter 27, or on the prep screen for chapter 28. Am I doing this right?

For my last example, I'm confused by the numbers for characters like Elincia. If she were to get an A with Geoffrey, am I reading it right they only need to be in two battles together for an A support? She could get the B, and immediately after get the A?

My apologies if this is noobish, but I don't generally plan supports for this game, and want to make sure I understand the rules, you know?

Thanks for your time!