I was wondering if too much grease/oil could also cause the binding? I did run the springs up and down several times on the spring winder before assembling. However one nagging concern is there may be too much lubricant. I checked with the supplier and they told me the new springs were pre-lubricated. I wonder if they really were or if it was packing grease to prevent corrosion? The movement will only run one or two days on the 8 day movement. I also suspect that I have one set of tight bushings. This same pivot seems to have too little end shake as well. Another dis-assembly. The old clock has probably been apart more in the last two weeks than in the last 110 years.