I will say this much. I live less than an hour from Mike and have met with him a number of times. He is a great guy, very knowledgeable as we all know and is VERY dedicated to his family and their needs as well. About a year ago we were talking about how busy he is and he shared how excited he was that I was working on radios myself. I asked him if I could email him a question occasionally and he said it was ok but to beware, he was receiving between 100 and 200 emails a day. I too have reached out to him without a response but I have seen a few folks on the interweb stating that he has fixed their radios recently so I would expect that all is ok. The last time we were together he told me that someone had sent him a box of radios (I think it was 6) for repair and he had a tone of work backed up. When folks send you work without a schedule for that work it can be crazy at times. Also, I think that the YouTube videos really blew up his business with work. He may simply be avoiding posting anything so he can control the volume that comes through the door.