Parallax Question

[Dive N Shoot]

<Cut from How to Use your Scope>
To adjust the parallax, start by focusing the image as you look through the scope.
Then get the rifle on a solid rest with the reticle on-target.
Now move your eye up and down or left and right WITHOUT disturbing the rifle's aim.
If you see the reticle moving around on-target, that is a parallax error you are seeing.
Continue to make small adjustments to the focus until the reticle does not move on target.
Now you are ready to make a precise shot.

And now my question.
Am I in correct parallax and focus when the center of the reticle isn't jumping around?
Because I find the edges of the reticle seem to bow up and down or left and right depending on how I am adjusting my head. I should just make sure that the middle isn't bouncing. Correct?

[AR15barrels]

I should just make sure that the middle isn't bouncing.

Correct.