When completing a front surface approach, at what distance from the survivor should the RS execute a quick reverse?

Executing a quick reverse at an arm's length is critical in a front surface approach because it allows the rescue swimmer to maintain control while minimizing the risk of startling the survivor. When the surface swimmer is close, they can assess the survivor's condition and readiness for rescue. Being at an arm's length typically provides enough distance to avoid accidental contact, which may lead to panic or further complications, while still allowing the swimmer to quickly reach out to the survivor if needed. This distance ensures that the swimmer retains the ability to maneuver effectively without losing the advantage of proximity to execute the rescue swiftly and safely.