I think I remember Johnny Herbert talking about this. From my recollection it was with regard to the 1995 Belgium Grandprix, I think it was on Friday practice that Herbert easily had the measure of Schumacher much to everyone's surprise, that night MS said to Herbert as you're doing much better than me I don't want to share my data with you anymore, but MS still had access to Herbert's data. Schumacher qualified down in 16th but then went on to win the race. I think it was mentioned that he changed his car set up overnight, possibly aided by Herbert's data.
Another "I did drugs in my youth" dreamtime event from Herbert...
Friday and not only was Herbert 24th, ie; last, he wrote of his chassis running off the track into the armco. Schumacher's time was 2nd fastest.
Saturday Schumacher also had an off severely damaging his car that had to be rebuilt and his outlap time was still good enough for 16th. Herbet managed only 4th whereas MS was expected to grab pole.
Schumachers car had to be rebuilt overnight and from lack of laps of course they took Herbet's setup, that's not rocket science and totally to be expected.
Of course the race is remembered for Schumacher's win from 16th and driving on slicks in the rain when everyone was on wets.
Herbet was a bloody good driver but apparently he had many issues upstairs that affected him in the cockpit.
Edited by cheapracer, 25 November 2011 - 17:39.