Love that you also used the Z1R, that is the headphone I would be using with this stand. Ideally there would be a little padding over the metal bars, but that isn't a deal breaker at all. Cheers.
Yeah, it fits the Z1R well. The hanger part of the stand is plenty enough forward so that it's actually difficult to hit the 2 metal posts with headphones. You'd have to really throw your headphones on there, so I wouldn't worry about that.