After several months of sitting on the shelf, I went to take my Yashica Mat, the one this site is named for, out for a spin to test shoot some color film. When I went to test all of the features, the shutter button stuck in and wouldn't release. Since I was able to fix the shutter the first time, I thought I might be able to do it again. I opened it up, as you can see below, and discovered that several of the gear functions were frozen and wouldn't work. So, I have since retired this guy and put it to rest on the shelf. In pieces still.
Moral of the story? You pay for what you get on Ebay. I spent only $50 bucks for this guy, but I got several shoots and that is all that matters to me. Time to get another camera!