Hey Woody, I applaud your efforts in providing the information about the SC. I tend to believe in real data. If power is applied to the SC clutch then the clutch is engaged period. Now if there is some other mechanism bleeding off the excess pressure then I can understand the boost/lack of boost issue. Maybe we are missing something? I know from running turbo cars for many years that you must bleed off execess boost when the throttle is closing. Otherwise boost spikes etc. and that is never good. This is an interesting issue, keep up the good work from everyone involved in helping us understand. You have me curious and although I have too many projects at the moment this might be fun to investigate!