Two summers ago, I sailed my Hobie 18 in hatteras. At one point, I took out my 6'5", 260lb sasquach friend. He and I (at 200+lb) were double trapping, so thats over 460lb on the mast. I was actually a little concerned wether it would hold, but no problem. There is also an old hobie video of guys adding a third trap to an 18, so that would probably push it over 500lb.

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