So I had wrote before on another thread that I had a slight shimmy in the steeing wheel between 65 and 70 until I drove a few miles then it would go away. I have just over a thousand miles on these Michelin Laitudes. So anyway about three days ago I checked the front lugs they were good and tight and then I added 1 psi to each tire to bring them from 35 cold to 36 cold as recommended. Ever since then this thing has been smooth as silk on the highway. No more vibration. Can someone explain this to me??