Since the ABPA seems to run in cycles of 40 seconds (mine actually seems to take 42 seconds), I wonder if there might be any benefit in running frequencies for durations of multiples of this.

My idea: If each light on the ABPA represents an individual step in a process, then the frequency should run at least for 40 seconds minimum to assure that all steps have been run in the process.

Often times when running convergences, the individual frequencies may only be held for a portion of this time (for example, 10 seconds or less). Maybe the full benefit of their value had not been achieved because the ABPA had not fully processed it.

Just a thought.