Quote from Spydertrader:
The chart (but not date) posted previously (above) represents Thursday's market action. Just as a double check, does the question quoted above refer to Thursday or Friday?
If Thursday, then begin with 14:35 walking through each bar noting which direction represents dominant and which direction represents non-dominant. Note the bars where dominance changes. Let me know what happens when you arrive at 15:15.

- Spydertrader
Sorry for the confusion. My charting software failed me

.
The day in question is Thursday, 7/31/2008.
14:35 eob creates pt3 in the aqua pu traverse, exits the RTL of the black down traverse on increased volume and exits RTL of the red down Channel on increased volume -
moving in dominant direction UP
14:40 eob continues higher on increased black volume creating VE -
moving in dominant direction UP
14:45 eob IBGS closing down from open on decreasing volume, beginning a retrace in aqua traverse -
moving in non-dominant direction DOWN
14:50 eob continues retrace on decreasing volume -
moving in non-dominant direction DOWN
14:55 eob continues
DOWN but on increased red volume (
the volume that did not come from any of the three instances where increasing non-dominant volume appears without signaling change in trend). The retrace becomes a reversal.
The dominant direction now is DOWN
15:00 eob creates FBP on increased black volume and since formation does not constitute change, we have a continuation of
the dominant direction DOWN
15:05 eob is black on decreasing volume, which is what expected from a retrace in the
DOWN trend
15:10 eob is red on increasing volume, confirming
the dominant direction DOWN
15:15 eob is black on decreasing volume, which is what is expected when
the dominant direction DOWN
It looks to me that dominance switched from UP to DOWN during 14:55 eob on increasing red volume.
Is this what you were getting at?
If so, what about the actual change signal?