Ah, so it wasn't a problem wiht how good the mount actually is or how well it works in normal applications, but it wasn't fast enough when R&R'ing cooler and CPU in a production like use (I assume because of needing to use screwdriver down through cooler).
Sorry, but that hardly makes it anything but not best suited for a very unique and rarely done application. In fact that is an application most users have not nor will every be doing.
Could I ask what cooler did you find the easiest to use for that kind of production application use?