I would use a weather station. Track the DA, temp, jet, etc.

I have a "summer" tune and a "fall" tune...but usually leave it alone,,and dial the car to the weather...this way i know if something is going on with the car,,,if it falls off or picks up,,etc.

Took a few seasons to "figure" it all out...but now i know what the car "should" do.

Even won some $$ at Norwalk with my weather station...going rounds with Jack Moore

Doug

This is the weather station i used to have,,,then upgraded to a TAG,,,lol