Just a wild thought.. I've never tried playing with mine with the S - W switch in the W mode... If your in W mode would the computer say "Really?" if you decided to performance shift?

And I only throw this out because after a day at work and out to lunch and nearing home I noticed I was in W mode..it was muddy in my drive and I went to it the night before.... Before the tune, throttle body, and intake upgrade it was real obvious in the NA. Figure A six is going to be even less obvious over my meager upgrades.