Bob,
No, I have not flown with the Transitrace Timing System. What should I know?
Best, DennisT
For the Standing Start classes you will have a designated launch spot. It is right behind the primary sensor (there a two, with the second one used as a back-up). The sensors will be positioned favorable to the ground winds, for CCW pilots. When your plane is released it will go under the beam and then pass through at the end of Lap 1.
Make sure to maintain a steady elevation, roughly chest to shoulder high. Some Jet pilots like to fly low. For them the sensors have to be tilted forward to lower the beam.
Make sure your launch crew knows not to walk through the beam after launching your plane.
None of this is difficult. The system is pretty neat. It will give you the speed of each of your laps plus the average. I like to know the first lap speed and the fastest lap speed.