[otto in norway]

Well, I finally got a chance to troubleshoot this issue.

The ignition is fine, runs good on either coil bank.
The sensors are fine, good ground, and stable read-outs on the logging runs. No fault conditions either. All seems to be in order.

A little repetition is in order to explain the issue:
In about 50% of the times I start her up, I can immediatly feel that it will not rev as happily as it should from idle. It runs lean in a split second after pressing the pedal rapidly, causing it to hesitate. This phenomenon will stay this way until I shut it off, and try starting it again. Then, if I'm lucky, the engine may run normally from the start. -Revving happily, and does not go lean when pressing the pedal rapidly. Then it will keep running normally like that until I stop the engine and try starting again.

EDIT;
I just realized that I may have misunderstood the staging function of the unit. I have tried to add fuel using this function, but that may have been a mistake.

So the search will continue once I correct the settings.