Im going for my practical driving assesment in one week, hopefully i can get there becuase my teacher cant fit me in. But the problem is my emergency braking. Im trying to stop withing 12 meters doing 45-50kmh. Every time i do it i either lock up the back wheel and make the distance or i dont lock it up and dont make it by 2-3metres. Just fishing for some advice here as i need to get this dowm and right!!