Been a while since I raced Dawgwood, but usually it's dry slick and from the sounds of it last year it hasn't changed much. The guy prepping the track is still the same one and usually it's a Burris track with Rollspeed Red, Welch Red, or any of the old red preps being the majority used. I don't think they normally use Calcium on sat night races, and most of the time the track doesn't get faster as the night progresses. It levels off pretty quickly and stays there. It's a very fine "Sandy colored" clay track. Doesn't usually bite up real great, even on big races with calcium. Some nights if it actually holds moisture it can be ok. But, it's one of my least favorite tracks dirt wise. It's an slight momentum track if it ever gets any bite, but usually doesn't get much.
This time of the year I'm sure it has more moisture, and I raced there more toward the warmer months or fall. Still rarely held much moisture. Hope that helps.