You say it was checked at speed, which is fine and probably it was only a few trips. Just think about how things are going to fatigue when it's driven for long periods of time at highway speeds. My 80's Pro Stock hood scoop was bonded and riveted to my glass hood. After about a year of sporadic 1/8th mile racing, it began to separate and pull the heads of the rivets through the lip of the scoop. I bought another glass hood and scoop. I had the back of the hood cut so the lip of the scoop was on the under side of the hood. That was approximately 8-9 years ago, there have been no separating of the hood and he scoop. The air entering the scoop will try to peel the hood or scoop off. You can run it anyway you wish, but there has been some good advice offered to you here.