To confirm the power output of my Speedparts Stg3 I intend to put the car on a rolling road in January.
Changing the APC Solenoid valve solved my boost pressure fluctuations (will fill in the details of those later) and the car now produces copious amounts of boost in the middle of the rev band. Testing this at higher revs is difficult due to the speeds involved, so I decided a rolling road would be a good idea, and they can also record boost pressure and eir/fuel ratios.
http://www.dyno-tuning.com
is not far from me, so I have booked it in with them. Hopefully plots will be produced in the new year.