What is the advantage of "double clutching" when shifting gears?

The concept of "double clutching" is primarily used in driving manual transmission vehicles, particularly in situations where precise gear shifting is necessary. The primary advantage of double clutching is that it allows for smoother gear changes.

When a driver employs this technique, they essentially engage the clutch, shift to neutral, release the clutch, rev the engine to match the RPM of the gear they plan to shift into, and then engage the clutch again before shifting into that gear. This process helps to synchronize the speed of the gearbox and engine, thereby facilitating a smoother transition between gears and minimizing wear on the drivetrain components.

While getting the engine's RPM up with the clutch out could provide more control, the fundamental purpose of double clutching revolves around making gear transitions smoother, which can lead to improved vehicle performance and longevity of the transmission.