Uncharted: Drake's Fortune : Easy way to complete chapter 9 in Crushing/Brutal

Really weird skip I found by messing around in chapter 9. By the way, I know you can directly skip the chapter altogether by clipping inside the customs house in chapter 8 instead, but I think that if you do it, it won't count as if you finished chapter 9, and if you want to complete it in Crushing/Brutal it won't work. So here's my alternate way of doing it that only requires to do the the first jet-ski part after the fights in chapter 8.