Core: Hill start: two risks, one coordinated action

The book describes the hill start in one sentence, with two connected risks: the car can roll back, or the engine can 'afslaan' (stall) (Book p.158). Both are consequences of the same imbalance — too much brake/too little throttle causes rolling back, too much throttle/releasing the clutch too fast without enough revs causes stalling. The solution the book names is not one trick, but a coordinated use of three controls at once: the handbrake, the throttle, and the clutch pedal (Book p.158). None of the three works alone; they must move together in balance. The book gives no further detail on this page — no name for a specific bite point, no exact release order, no separate instruction for an automatic. This atom is therefore limited to exactly what is stated: the problem (two risks) and the principle (coordinated use of three controls), without inventing extra technique not found on this page.