Before someone above mentions it, you have to make sure you don't drive like a fairy, this teaches the ECU a false picture of engine limits, so if you then come to give it some stick it will say 'no chance' and back off the timing etc, how do I know this, this is exactly what mine did at the rolling road meet, fortunatly Mike Wood was there from Prodrive so he reset the ECU and told me that I needed to use all of the rev range (he could see what revs I had used from new). So give it a bit of a rev every now and again. As far as I know the car that gave the most power on the day had been hammered the most during its running in period (flat chat down the mulsanne straight). dont know if thats any help
....................................Sumo