Was just wondering what effect this duration 'error ' will have on it .
I'm not quite sure what Chris means but think he means setting the timing beyond 19ms at any place on the map has no additional effect on fuelling at that point.
Divide 6000rpm by 60 means 100 revs/second - each rev takes 10ms therefore, and because the Adapt fires once every 2 revs, it follows that setting the timing to anything beyond 20ms @ 6000rpm is pointless. I've got values close to and beyond 10ms for the 440's at a bar from 3000rpm upwards.
Of course at 3000rpm, you have a 40ms "window" to play with. *In theory*.
Is this what you mean, Chris?