Eight is a core Fibonacci number (aren't they all?) as well as the number of hours in a typical work day in the colonies. These eight-hour trading models appear to work well in bridging the gap between shorter-term and intermediate term trend models.
DJIA 8 Hour AllanTrend Model
VXX 8-Hour AllanTrends Model
If these two new signals hold, it would appear that an Intermediate term reversal is at hand.