That means ‘shortening’ their approach to - and exit from - bends in a way devised by Rob, primarily to eliminate time-wasting tyre scrub generated by gentle, longer trajectories. As for ‘flat’, it means ‘listening’ to and feeling the car, giving it fractions of a second to settle between braking and turning, enabling tyres, suspension and other components to perform optimally during turns, delivering extra stability and quicker times.