I would just like to thank William & Bob for this course especially the Hermle video section, I had got my hands on a fairly modern Long-case/Grandfather clock, it was water damaged and non functional I thought Id have a go. It had a Hermle 451-050H inside and having never worked on a 3 train before it scared the pants off me ( I am new to clock repairs only 18 months but enthusiastic), I watched the course about 4/5 times even when I was working on the movement. After days went by it worked and now has a place in my hallway.
So once again thank you for an excellent intuitive course.