I am attempting to put replace my first mainspring. This isn't as easy as the video makes it look. I can never get it to stay in the notched hole when I release the spring from the winder. It always unwinds past it. I haven't tried it on the new mainspring yet, I'm just practicing using the old one. Maybe this makes a difference. What do you do if this happens when you try to set the new mainspring? I certainly don't want to keep removing it and rewinding it as I would assume this would ruin the tension in the spring. Any suggestions would be welcomed.
Monty