I messaged @TammerDown but he doesn't appear very active. So I'm asking the general crowd.
I have a used set of CRBN's (look fantastic, can't find a flaw on them) that has frequent crackling sound from very little movement/touching. Even turning my head to the side causes noticeable volume increases which eventually settle down to volume matching between sides. I can press on one earcup to repeatedly replicate the volume increase. Is this similar to other experiences. I have not noticed this on the Jade II or KOSS 95X. SR-007 incoming so I can't compare Stax just yet. The video which he linked is private so I can't watch it.