Pete, I find it hard to believe that the bigger duration cams mad as much response as the smaller cams.
Also find it hard to believe that the larger exhaust didn't make a difference.. Unless the Cat is now restrictive. What size was is the cat?
Also can you post these "diary" results Pete?
Take it to a new tuner, drop the car and see how much more power it makes.
I would NOT be surprised if the figures are fudged to make them seem similar to previous result, therefore making CRD appear not as stupid