Interesting reading there spot.
I can confirm that it turns out i did have a problem and was not running on full boost, it was peaking around 5/6psi. Now i have sorted it out its at 7/8psi. It may not seem a lot but there is a mahoosive diverence
Comparing my graphs i have they were very closely matched untill the boost started to flat line. Had it increased as normal i 'guess' i would have been somewhere close to what we were expecting.
When its retuned next month (yes ive ripped it apart again before a show ) im going to see if i can have results and graphs in flywheel power and wheel power and see the difference