Thanks, guys. Here's the update: I used a new pack of D2T inside the house at 70 degrees with 50% humidity, not out in a cold garage at 60 degrees with 75% humidity--cold rain outside, lol.
Anyway, I was able to brush over the first bad coat with no probs this time--very smooth and flowing (I didn't thin the D2T). I found that you get only 10-12 minutes or so of true "working time", not 30 like on the package. It was thick and unflowing (even for household gluing) in less than 20. Good luck with your usage.