Further details to follow when I'm someplace with civilized internet access.

triggers are: bbc+bh1-mb+etot-mb-l2+jpt-mb-l2+bh2-mb-slow
 

Figure 1: vpd Vz - bbc Vz for events with no PPV vertices

Figure 2: vpd Vz - bbc vz for Events where the rank 0 PPV vertex is within 8 cm of the vpd vertex

Figure 3: vpd Vz - bbc Vz for Events where the PPV rank 0 vertex is greater than 8 cm away from the vpd vz vertex, but is closer than 20 cm.

Figure 4: vpd Vz - bbc Vz for events where the PPV rank 0 vertex is greater than 20 cm away from the vpd Vz location.