Trigger:
Stock VR cam sensor. It has 24 teeth and 2 additional pickups 180 degrees apart.
As I rushed things and ordered assembled unit with secondary trigger - Hall, I had to stick to the initial plan by using only NE signal from 24 teeth wheel and grind two opposing teeth off.
Otherwise, as I understand, it would be possible to use unmodified stock trigger as coil-type trigger together with cam-sync (from one of those additional pickups G1 or G2) as secondary.
So, in this case 24 wheel cam sensor with opposing teeth missing is represented as 12-1 crank wheel.