Thule Xsporter Racks come off pretty quick if you need to do so. 5-10 minutes max. And they are secure.
Your idea works but I dont like it for much distance. I do something very similar (use my Roll Bar instead of a roof mounted rack) and the Goal Post just moves a little too much for my liking. Its fine when the boat is laying in the bed but when its up....
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CJ Siebler
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