Spark drop?? 2012 Coyote

Got a buddy that asked me to log his run for him, and captured what seems to be some sort of spark advance drop. Anyone every see anything like this? PCM is suppose to be commanding 24* in these areas, but the spark advance completely drops off during the 3-4 shift, then slowly rises. I posted the log to give you guys a visual of what is going on. Any info is greatly appreciated. :confused:

You're most likely dropping out of the optimum power table and into other tables that command less spark during the shift. My car does the same thing. You'll need to log those mapped points to see for sure but that is most likely what is happening.

spark drops due to cam timing drops