Rest assured that Black Diamond's ATC-Pilot Belay Device will help you catch whipping lead climbers like any other assisted braking device. Unlike most assisted braking belay devices, the ATC-Pilot doesn't use any moving components to ensure a secure brake; instead, the device's unique geometry makes the rope pinch itself whenever the rope tugs too hard on the climber side, ensuring a naturally reliable catch every time. This is Black Diamond's first attempt at making an assisted braking device with increased security and safety, and climbers can't help but admire its compact, lightweight, sleek design that could only come for Black Diamond.