Gary:

If I recall correctly, the video issue came up when they sprayed: if the spray was atomized or in stream form. Also, they ran the test on a torch heated exhaust manifold....NOT on a running engine.

To my knowledge, 921 and Vytos book both rely more on empirical data than actual testing on a vehicle while running. The configuration of the engine compartment, size of fan, volume of air movement, octane of the fuel, spray pattern (mist-stream), and others all have distinctive factors relating to real world possibilities.

Chris