Overage is calculated using ACH, SCH, OSC
if your trip returns to base AFTER the scheduled return time, then OVERAGE is based on the greater of:

1. ACH minus OSC

OR....

2. New/Actual Trip Rig

The greater of those two is OVERAGE pay

(This will be paid in addition to trip guarantee)

+++++++++++++++++++++++++++++++++++++++++

Finally - BKO (Block Override)

BKO = OSC minus SCH

(This will be paid in addition to trip guarantee)

*** and THIS (BKO) is where you'll see the block over 8 (but not the block over 10) if it wasn't figured in to the original Trip Guarantee (SCH)***