Buiick Skylark Hood and decklid Airflow

Doing Tuft testing on the 1971 Buick GS, Muninn/AKA The calico cat. With a stock Skylark style hood and rear decklid.
Test conditions: North/South runs with 15-18MPH cross wind out of the NW.
One run up to 80 to see how tufts react.
""NOTE"" on last tuft clip. I am heading Due ""WEST"". NOT due east.