I took a technician on a test drive on the highway to show him an issue (hood flutter) and he video taped the issue. Ask your dealer service if you can take a tech with you so you can show them.
You and I are on the same page. My hood flutter fix was done in January. I watched it over an 1800 mile highway drive a week later (where I picked up 3 star cracks in the windshield - my next topic). The hood flutter was a lot better, but in my opinion, is still not great. The issue is 2...