The workload limit (also known as the working load limit - WLL) of a webbing sling can be affected by the different hook or attachment configurations used when webbing sling or securing a load. The workload limit of a sling is typically determined by the manufacturer and marked on the sling itself. Various hook configurations can impact the effective workload limit due to changes in angles and stress distribution. Here's how different hook configurations affect a webbing sling's workload limit:

Vertical Configuration: When a webbing sling is used in a straight vertical lift with no angle, the WLL stated by the manufacturer is typically the most applicable and does not usually need adjustments. The full WLL is suitable for vertical configurations as the load is directly in line with the sling.

Choker Configuration: In a choker hitch, the sling is wrapped around the load and the ends of the sling are attached to a hook or connected back to the sling itself. This configuration decreases the effective capacity of the sling due to the angle created by the choker hitch. The WLL for a choker hitch is typically lower than the WLL for a vertical lift due to the reduced angle.

Basket Configuration: Using a basket hitch involves passing the webbing sling around the load with both ends connected to the hook or attachment point. The WLL for a basket hitch is affected by the angle formed by the sling at the connection points. The load is supported from multiple points, and the angle at the attachment points affects the overall WLL. In certain cases, the angle can be more favorable compared to a choker hitch, allowing for a higher WLL.

Multi-Leg Sling Configurations: Configurations where multiple legs of a sling are used to lift a load also impact the WLL. The angles at which each leg of the sling is attached and how they're connected to the load or hook are crucial in determining the overall WLL.