i also wonder about this besides hood pins. At 120 or so my hood starts shaking and it makes me real nervous so I let off. Mine is adjusted as far down as it will go. Even to the point were its tough to pull the hood pop but even this tight I still get the "flutter".
I got it working like a charm ! I did the washer under the torx screw trick and I cut the 90 degree bend off on the strike plate on the hood. No slamming to close just push it down and I am good to go.