Of course we have to get the stagger right for the track we are racing on.
Totally wrong, off base, and will screw with your mind taking you down a path to doom if you think and deal with stagger the way.
You get your kart working right for the stagger your using and the track.
Infinitely different amounts of staggers will work and to think it has to be "right" is "wrong".
Stagger is right for the rest of your setup which controls how it works.
Putting stagger first is like putting the horse before the cart.
Whatever stagger you have is used at DIFFERENT places around a turn and around the track.
You set up to use stagger you don't use stagger to setup.
There are times and actually most of the time where you have to use whatever stagger you have.
It's the kart and your tires you adjust to make stagger work not the other way around.
Stagger works because you can unload and load tires.
Stagger does NOTHING at all to unload and load tires or make them work, it allows them to work.
The >>>>>ONLY<<<< two things stagger does is altering ride height and set a difference in surface speed between the left and right rear tires.
Any time you think and use stagger to do anything else is wrong.
If you change stagger and it changes anything about how your kart works you need to think about how either changing ride height caused it to happen or how changing the difference in tire surface speed between the two rear tires caused it to happen.
Change the difference in surface speed between your two rear tires and you will cause either of your two rear tires or both rear tires, to slip more or grip more depending on your ability to apply weight to each at the right time for your racing needs.
Prepping to alter the grip of a rear tire does the exact same thing as changing stagger without changing ride height.
Both are about altering the ability of each rear tire to grip in relationship to each other and both ways are totally dependent on your ability to apply and remove weight from each rear tire.
Al if your close on stagger there is no need to change it so long as you can fine-tune by chemically or mechanically alter how each rear tire grips.
Al if your spreadsheet gets racers "close" on stagger per your suggested input then it has value. (DID I JUST SAY THAT?) ...