Unfortunately, this merry-go-round will turn forever, and some folks get really would up about such things.The products under discussion here, the Zeiss SF x42 series are superb for 95% of users, and induce nausea in some of the other 5%.
The same goes for the high end Swaros. The geeks seem to agree that studies confirm the perception really occurs, and is correlated with a certain measurable type of distorsion - if I understand rightly.
Unfortunately we get a bunch of defensive replies here of the style “never happened to me or me friends so you must be a lying b*stard to claim that”.
We also get some constructive remarks like “try before you buy, trust your own eyes, not what people say”.
I vote we go with the neutral “try before you buy” advice and move on to a less controversial topic, eg. whether one should use animal-leather straps on birding binoculars
Some
We don't all see the same, and our minds don't all work the same.
Sometimes that helps, but often it hinders the orderly exchange of information here.