So now that we know DI pressure drops rapidly with aggressive intake cam advance at low RPM, why do you think Subaru/Toyota left that torque dip in there?
I think they've known all along the DI pump was an issue and they dialed the the intake cam timing back in an effort to mask a problem with the DI pump performance. It's easy to sit back and say the OEM tuning sucks but these calibrators aren't dumb and they sometimes tune this way on purpose.