No
If you find yourself crossing your eyes forget the blip page for the time being and just use the Imaginary X Technique.
The question is are you crossing your eyes? You can check this by viewing magic eye pictures. If the picture lifts off the page you arre using parallel vision. If the picture looks like a cave or a cut out like dough wit cookie shapes cut out of it, You're crossing your eyes.
Crossing your eyes causes strain and can create headaches, it is also not Photofocus.
Alex