Scouting info carried to the game

I am the defensive guy in the box. I take a form with me that lists the various down-distance situations.
I 'm concerned with a few things:
#1 Is it a run or pass down? If it's a pass down, what type of pass action is employed? If it's a run down, where do they run (A/B gaps, Off-tackle, Wide, or option) and to which side (TE, SE or to a specific back)
#2 Is there a play that the offense likes to run in a given situation (screen, rocket screen, option, etc)
At the start of the game, I will tell the DC what we expect, based on scouting. As the game goes on, I will chart what the offense does and relay this to the DC. Sometimes I will make suggestions as to what to call, based on what I've charted.

On a 5x8card I will have all the front/stunts/coverages we plan on using for that game (including any checks). On the back of this card I will have a list of "what-if's". These are calls to use if the offense does something we'haven't seen on film, or calls to make if we are having trouble stopping certain things.

You don't want to have too much info, or you'll suffer paralysis from analysis. I would suggest that you decide what you feel you need to know and go from there.