Thanks for the info. on Roe. I checked with them and they don't do the flashes.
As for the question on DA, really don't have a clue. The 12.82 was at Evadale (Ben Bruce memorial Raceway), probably no more than 20' above sea level, air temp. was 67^, I had a 17mph tailwind, and the humidity was between 45% and 50%. I didn't get the barometric pressure and don't know the DA. My previous best was at Houston Raceway Park, was 12.83, the track is closer to sea level than Evadale, air temp was 47, humidity was near 60%, and I was running into a 7mph headwind. Ditto on not knowing the barometric pressure or DA. We are blessed with tracks close to sea level, and I don't run unless the conditions favor a possible new best. I expect I won't go back to the track until late September or early October.