Hi All, I recently moved a lot of photography and musical gear I no longer use to make room for some new (to me) photographic gear. The first purchase was a Leica M4-2 which I love (and started a thread about). Yesterday, an opportunity came up to inspect and possibly purchase a Leica M2 in good condition. The camera is at a brick-and-mortar store with years of reputation so I am comfortable purchasing there. They mentioned that the camera had had its last service two years ago and everything on it is buttery smooth. It would come with a three-month warranty. I've read several Leica buyer guides and am generally comfortable buying used gear. However, I wanted to ask for your collective wisdom (especially those who own an M2) for any tips as to what to look for during the inspection. I've heard horror stories about balsam separation but don't really know what the early warning signs of it are. Any specific and descriptive signs of potential issues would be appreciated. Thanks!