Its the injectors trigger tooth, everything depends on how you configure your injector outputs agains the trigger reference tooth table.
So putting 720 in the table should be like moving your injector outputs one step.
Hmm, didnt think that through i guess
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180degrees must be like moving one injector output on a 4cyl.
So you´re right that 0 and 720 should be the same.
So if you fire a cylinders coil and injector at the "same time" and delaying the injector over 360degreese then its on the intake stroke again.
So it all depends on that you shoot them at the same time.
Does that seems a little more correct?