I was actually pondering this as we’ve watched the track and field events. The distance from a gun to the farthest lanes must have a measurable effect on start time. And even if it’s just 1000th of a second, races have been won and lost by that amound.
What’s got me wondering more, though, is just what the waveform of that starter tone looks like. It’s got to have a quick transient to it. I’d like to get ahold of it.