The eye of Frances, Jeanne, and Wilma passed over our house. For these storms, I tied my 28' Carver (11k lbs) in the middle of the canal behind my house. The canal runs east-west, is approx 600 ft long with a 90 degree bend at the openning, and 75 ft wide. There is not a lot of wind fetch. The boat was tied to the base of palm trees on either side of the canal. I since sold the 28' Carver and bought a 42' Cruisers (35k lbs.). Needless to say, I don't trust the palm trees to hold the 42' footer. I have replaced my old dock which had short pilings with one that has long pilings. I also have purchased TideSlides which operate on the same principle as hurricane hoops. SlideMoor also makes a similar system. TideSlide had installations in place for Frances, Jeanne, and Wilma and had no boats using their system damaged. With the boat tied to a slide or hoop (assuming that the slide/piling is tall enough), lines can be shorter and therefore there is less stretch and less movement of the boat. I had the 42' footer tied in the middle of the canal for Ernesto (40 mph wind) and it sailed up and down the canal from the lines stretching. It was clear to me that I needed to do something different for it. For Frances and Jeanne, we had approx. a 6 ft surge 8 miles inland. Wilma blew offshore for us. If we had something larger that a cat 3 coming our way, I would seriously consider having the boat hauled. Unfortunately, NOAA is not as good at projecting strength as it is in projecting path. Wilma was suppose to be a topical storm by the time it crossed the state. It was far worse than Frances or Jeanne. One neighbor had his entire roof blown off, not just shiggles, but the rafters too. It was not properly tied to the walls but the same house "only" lost his pool enclosure during Frances (it was gone when Jeanne hit 3 weeks later).
My biggest concern for the hurricane hoops is that they could ride off the top of the piling. If your in a slip where you need to share a piling, your neighbor needs to use a hoop also for the hoop to be effective.
Mark