I'm having a Meier Corda Cross-1 built by Head-Fier Picopa. I suggested he split the grounds to make it possible to modify it later for a balanced system, and he pointed out that it might not be that simple. After further discussion, it seems to me the circuit...

While I'm typing, Safari closes abruptly (how else would it?).  Has anyone seen this lately?

I got my K340’s in the 80's, still stock except for the rubber bands. I'd like to get the soft-leather pads from KT88 and put in cloth screens to replace the plastic grills, without destroying the grills. The threads about these things are years old. How do I proceed at this point in time?