In terms of strength, which arrangement of rigging is correct?

The arrangement of rigging being correct highlights the importance of load distribution and strength efficiency when lifting with cranes. In the case of a basket hitch, it is one of the strongest rigging configurations because it essentially wraps the sling around the load, distributing weight effectively and minimizing stress on the sling. This configuration also offers an increased lifting capacity compared to other types of hitches because it proportionately shares the load between the two legs of the sling.

The vertical hitch, while strong for lifting, does not provide as much stability or load distribution as the basket hitch. The choker hitch, on the other hand, is also a secure way of lifting but can place additional stress on the sling in certain situations, depending on the load's movement and weight.

By placing the basket hitch first in the arrangement, it ensures that the load will be lifted most safely and efficiently. Positioning the vertical next allows for a straightforward lift while still providing structural support to the load. Finally, incorporating the choker last adds an additional layer of security, as it tightens against the load, preventing slippage.

Therefore, this combination maximizes strength and stability for the rigging setup.