I always work the same way, starting from the beginning of the weekend, so I know at the beginning of the race, from all that I have analysed during the practice, whether I will win the race or not.
The people who criticise you will not be the ones taking care of your legs when you are in your wheelchair. People who never drove a car in these conditions, they just don't know.
When I test I never go right to the limit. Only because when you are below the limit you can go at the same speed all day, and that's the only way you can be absolutely sure about what you are testing.