Guys I posted on his virtual system because I had the same thought and Charles responded saying he basically didn't have much to say about audio he hadn't said already and so many topics here are recycled so he's basically opted out.
Anyone heard from Charles1dad ?
I realized recently that I hadn't seen any posts from Charles and when I looked it appears that he hasn't posted since last October. I sent him a PM but no reply. I hope that he's ok. He's a good man and I always enjoyed his contributions.