Advantages when setting up the sail:

* faster rigging
(insert line - tighten - pull ratchet, ready!)
* significantly less effort is required
(power ratio approx. 1/30)
* no need for trimming tools
("easy-rig" or harness hook)

Advantages on the water:

* later adjustments can be made on the water
(when the wind speed changes)
* greater safety
* sail performance and application range are exploited to the full