"So yor saying that normal full throttle boost in the mkII should be +9lb and +12lb when opening the boost gate? As of rigt now its only +9lb AFTER opening the boost gate...."
Exactly, correct terminology is selecting Boost Cut out to allow +12Lbs.
I am not sure if the devs are aware of Rotol versus DH spinner and blade profiles from 3D graphics point of view with respect the Spitfire. I will have a look myself and see.