If it didn't flip during the drop, the G's going into the restraints would destroy your chest. From a design point of view, that might not be the best thing to do. They would have to drop you in a sitting position, and even then it might cause blackouts at the bottom with the extreme positive G's. I am not a designer, but it doesn't sound healthy. :) All in all, though, I like it. I would love to see the majority of the ride in a flying position. The 4D is an idea that is just bursting with possibilities.
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