> In this article's terminology, I think that slider controls "IAD" Of course it does; obviously the slider doesn't move your pupils. But it's meant to compens

> In this article's terminology, I think that slider controls "IAD" Of course it does; obviously the slider doesn't move your pupils. But it's meant to compensate for your personal average IPD. I think you're right that the collimated images section probably explains the result, though.