[dmurray]

> Because of - when you think about it, kinda obvious - timing issues that can mean at 25fps you have 40ms latency/slippage frame to frame, the data suggested the ball was kicked in one game, by Yaya Toure into the back of the opposing team's net at just over 1000m/s - a little over Mach 3.

This error seems too big to have come from the inherent latency of 25 fps.

1000 m/s over the shortest period, a single frame, would be 40 metres in 0.04 seconds. If there was one frame's worth of error on each end, then the lowest speed the real value could be was 40 metres in 0.12 seconds which is still a completely impossible 330 metres per second.

Am I missing something? 25 fps seems like enough to capture the ball location to within a metre for all but the hardest shots.