the difference between 53 and 65 might not be noticable, but try changing it from say, 3 to 65 and you should notice something
Yeah, but that wasn't what I was getting at. We aren't referring to the software setting, but rather your physical dimensions - the software should be set to match your actual IPD, if not, you're doin' it wrong.
I understand the concept of an ideal IPD, because of the way the optics work vs the fixed screen position. That being said, the question was "what is the "perfect" ipd?