Continuing ignition timing debate from the 416 thread.

The paper says it can take up to 100 cycles for fuel to stabilize after a change. 100 cycles = 1 second @ 6000 rpm. I'm pretty sure 100 cycles is not a hard number which is why they phrased it as "almost 100 cycles". The explanation of how the fuel travels at different speeds atomized vs wet flow seems to make sense as to why it was observed that what was an ideal a/f ratio for steady state turned out to be lean during a sweep.
I don't see how this same phenomenon would relate to timing. Unless the A/F ratio was not corrected from steady state to a sweep. But that would just mean you are adjusting timing for a too lean A/F ratio. Even if timing was affected by the sweep of the motor it seems to me it would make more sense to follow the papers recommendation for setting the A/F ratio "test for best power" and test the motor how it will be used.