Timing and Lift Angle!!

[CaptCalvin]

Lift angle setting should have no bearing on timing changes. It's far more likely it's the watch itself that deviated, whether it be from magnetism, oil run in, temperature etc. Watches do deviate a bit in performance one day to the next. To make this test scientific you have to run a string of tests on different LA settings. Also I don't think a few degrees difference in LA setting gives near enough drastic impact on amplitude to affect our ability to find faults.