I eventually had many, many more watches than I could wear or than I wanted to maintain. I reduced my total watch numbers drastically (at least 80%) and was well satisfied with the outcome. Since then there have been lapses of discipline, but my basic intention is not to increase the total, so selli
For all its beauty, the movement had a flat balance spring, a lever regulator, and a lot of hardware sticking out of its balance wheel. It was never going to be a superior timekeeper.
Also the Calder Garden at LACMA and the Rodin garden at Stanford. If what you have feels like a collection to you, you have a collection, and nobody should be able to convince you otherwise.
My understanding is that "end shake" is the degree of freedom pinions have to move: too little, they can't turn; too much, they may turn erratically. I have taken a watch like that to a watchmaker and he has been able to correct it without difficulty. No clue about the other issues.