Maybe we are just not as smooth as you mate
I was mullering the brakes at the ring on that first lap, after being caught out by the track opposed to the GT5 Track I was using in my head as a guide!
Plus, as I found out later, talking with Neil & Nige, I really should have bedded them in a bit first, as they were probably a little glazed, from everyday driving. They came up with a scenario for bedding the brakes in before a track session, which seemed to work quite nicely.
You also have to remember that if Steve drove the real ring like he drove the GT5 Ring, he never really used his brakes, he used my boot lid as a brake most of the time