I dug out my ignition tester equipment. I'm pretty sure I never used a hall sensor to trigger the modules when I made the charts.

I have a sensor that I trigger with an electric motor, but it is hard to get the RPM stable with it.

I normally use the Valley View RCEXL tester to generate the pulses to fire the ignition module, I don't like having unknown items in my tests. I verified that the falling edge waveform from the tester was fast because if it is sloped, that also causes problems.

Someone else posted the double trigger waveform. I only had a couple of sensors that caused that.

I believe the low idle issue with the A02 module is caused by operation in the area on the timing chart where the timing jumps from a huge advance BTDC to after TDC. It is hard to chart that due to the jumping while getting the RPM adjusted.