if you use the same technique to PR as you do to see stereograms, then you are not crossing your eyes. You are focusing correctly.
I wouldn't worry about what the blip page looks like. The blip is a side effect. It is like the sweating and panting when you sprint - but if you don't notice that you are sweating when you are sprinting, it doesn't necessarily mean that you are sprinting incorrectly.
As long as you can stay relaxed and your eyes do not become tired, then don't worry about what the blip page does or does not look like.
To quote a famous sneaker:
Just do it.
K.
