Paul, it sounds like you have KR at the higher rpm'*, and after the shift, at lower rpm'*, you don't have any.
Your supercharger is belt-driven. Sounds like at the higher rpm'*, you're producing some heat and boost-stacking. And the weather is cold right now. Even with higher octane, you may have to step up a size on your pulley for the GenV.
No Bill, it'* the opposite.
No Kr at upper rpm, just from 2500 to 3500.
No Boosty. This is with the water injection turned off.
It happens at aroun 0-2 psi boost and as the boost builds it decays to 0.
13 psi at 6000 rpm