The one way i know of stopping is to put one foot down and drag it, it slows you down fairly fast but it also destroys the souls of your shoes. which is why i only use it as an emergency
That hill eventually flattens out.When you're going that fast you don't really have a choice, you just have to ride it out.I can only foot brake up to about 25mph.
i dont no... i love longboarding.. but the quality was poor, good idea but i'd try to find a way to keep the camera more steady, maybe tape to arm or something