Im not sure as to what the DA really means but I Used a DA Calculator from dragtimes.com that uses the weather from the time of your run in a formula with the tracks elevation, etc. for DA and it was Density Altitude: 1046 feet
Relative Density: 96.97 %
I played around with launching RPMS and my best launch was produced when i was steady on 3500 RPMS after one of my better little burnouts, It hooked pretty good with just a little spin. After the 12.9 I did one pass and dumped higher and I rode the clutch wrong or whatever but it was a 2.05 60 and netted a 13.2, I was hoping for a 12.8x that last passed but was still thrilled about the 12.94 in the Manual which needed this to shed some light on the 6M doing the job of moving this car down the track just fine.
here is a picture of my car waiting and the z4m. It had wheels, monster brembos, exhaust, suspension work, dinan badges. it was nice in person for sure. He was frustrated with him times though, his best was a 13.3 with a 2.2 60 foot.