The voltage to the coil was ~9 volts, too much I was told. Mechanic put the resistor in line before the coil, I was told by someone else the resistor should be inline between the coil and points.

This seems to be what I recall in my younger days and does tend to make sense. I would prefer to stay with points, but if this problem cannot be remedied, I may need to go to electronic.

The breaker plate is in good condition.