The wheels are AMG's and tires are Continentals and both are brand new (only 300 miles). My decision to change the wheels were two-fold...1) to give my Benz a cleaner look and 2) to eliminate the factory wheels/tires as suspect in this problem. Since I replaced wheels and tires I can tell no improvement or worsening of the problem. Please let me know if I am missing anything here.

Thanks!