What year and model is your trailer? I have a 2015 24FBS and was told I didn't need one. From what I understand, it's only for traveling to prevent movement of the top of the slide. In storage I would just leave it up but not tight. Then you know where it is.
2015 Jayco 24FBS Elite Jay Flight
2013 Chevrolet Silverado 2500HD 4X4 6.0L 3.73 Axle
HD Trailering Package with Integrated Brake Controller
Equal-i-zer Hitch 10k/1000