Wow. I try to know as much as possible about the racer in the opposite lane. That allows me to sharpen up or dull my shoe polish. As far as double bulb staging, the first thing I ask in tech, is the stage to start time. I make them ask the owner. I had a quarters race for 5,000, decided on a quick increment. I.e, they double bulbed, I prestaged, and the tree started almost instantly when I final staged, and I don't fool around.