I have a ViS cf hood. I dont have pins. They're sitting in my garage. I bought them locally when I ordered the hood from ViS. I've had the hood for about 8 months, without using pins, And I drive fast, especially highway.The only flexing I have is towards the middle of the hood, on the sides, none in the front corners, I had someone pace me and check. You might want to lower your latch so It holds the hood down tighter, that really helps. I've checked my hood latch about aver month or so, to see if there are any stress cracks or anything, and have found no indications of such. It all depends on the brand of hood you're buying. I went with the ViS over the fiberimages because it is a sturdier hood, I compared the 2 and the ViS had a much better skeleton on it, and more material laid around the latch.