We're talking velocity stacks here, not cams. There are companies that offer them which produce gains without tuning.
I have tuned cams on the S85 motor with great results, so yes I have full control of the intake and exhaust cams, both warm and cold (within the factory limits of the vanos system). You can only target positions of the cam within a certain range.
I'm not interested in arguing with you,
so let's agree to disagree peacefully. My tuning speaks for itself.