Chris91

12 teeth on the crank is still a good trigger option and I would be happy to run that. The less teeth you have the more drift you see during high crank acceleration, but with 12T on an average road car engine it is barely detectable, maybe a couple of degrees at max acceleration.

You will need to change the disc to one that has a single window for the "cam sync".  Although you are correct in that the stock disc coupled with a separate crank trigger would give enough information needed for sequential triggering, it would need a custom trigger decoder written just for you which is unlikely to happen.

That would be an option, or an AEM style disc if they are available for the CA18.