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
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.