I have often thought the best way to do those pesty tasks is to just pick a time and do it over, and over, and over, and over, etc until you can do it in your sleep when your eyes are shut. I struggled with getting the long arm bobbin back in as I don't bend over and stick my head under the table easily. Now, it is a breeze, I don't even look when putting the bobbin back in and I just make sure I hear the "click". On my serger, I got tired of having to pull out the manual and review all the steps every time I needed to rethread it, so I just keep pulling out all the thread and rethreading it over and over one day. It works! I haven't reached this level of competence yet with my Bernina. It usually takes a couple of tries to get that magnetic bobbin case to snap back into place and when I hit the sweet spot, it goes in so easily! I just haven't figured out how to hit that sweet spot all the time. There are videos on you tube also with a few different techniques.