Thanks Steve. That's kind of what I expected, only a lot worse.
From what I can deduct, the cams timing tables that are active below IAM 0.4 are reducing the effective compression ratio at high rpm. Could this circumstance be interpreted as Subaru perhaps deems "anything above IAM 0.4 is normal and acceptable and not until it drops below 0.4 there a need to intervene"?
I am of course not saying we should tune for the car to run IAM 0.4. Rather, that perhaps it shouldn't be taken too serious if there are occasional small/moderate drops in IAM and/or moderate levels of FLKC in extreme scenarios.
It would be helpful to see how a stock car runs on good quality 98 RON fuel as recommended. If there are no logs available, I am going to see if I can find a stock car here locally and get permission to log it next year. Or maybe I will throw the stock header back on and go back to stock tune myself.