Just in case anyone is curious how my puppy-induced cable damage issue has been going...
I got word today that Beyerdynamic is actually going to cover this as a warranty repair. A guy named Peter Castelli went to bat for me and got it covered as an exception. I already love my Beyer headphones, but knowing they give a you know what about their customers and will make an exception like this just adds to my appreciation for them.
So, off they'll go to a place called Sound Surgeon in New York for a cable replacement :)
Peter is a diamond. Repaired mine as an exception under warranty repair when the drivers broke. Turned them around in 24 hours. Unbelievable service.