I am working on a Kundo 55 anniversary clock that recently stopped after working for 15 years. Since I am cleaning the movement and replacing the mainspring, I also wanted to fix a problem that has been there for a long time. Check out the enclosed photo. I have checked the suspension carefully against the Horolovar diagrams in their book. It is completely within specifications...but notice in the photo that the pendulum hangs 4mm below the proper locking point for the unit. I could easily raise the bottom block 4mm, but obviously this will change the time. Can I do this and then adjust the pendulum to account for the difference? I also noticed that the area in the pendulum where the bottom block hangs looks egg-shaped. Is that normal, or has there been wear here that allowed the pendulum to drop? Thanks for your help in advance!!!