Bill ask me to send him a couple of the sensors that fired two times, I got 12 out of the storage box and tested them and two out of the 12 would fire two times, So that tells me that not all of them are doing it and they all have the same product numbers on the sensor.
This has been going on for a while, started for me a little over a year ago when a customer notified me he could not time his engine because of it firing two times.

On FG there are a lot of post about it in different threads and showing some with cut fingers because of kick back.

GP engines was the most posted thread about it.

Not trying to damage any company just posted what I have seen.

Right now beside CH RCexl is the only company that makes a good twin ignition.


Milton