Reversing video, 1 pixel shift = smoothness?

When reversing video, I know you should apply the shift field option to make it crisp/smooth. I'm just curious as to whether shifting the image 1 pixel up or down would have the same effect.

Graeme Nattress has a G-reverse filter that does a much better job than FCP's internal effect.
www.nattress.com
good luck.
x

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