It is 10% shock absorber and 90% way for senior guys to get a relatively easy extra 30 hours a month usually by cherry picking CIC. The company loves it because it is straight time.
You cant tell me most of the C/O (all of the domestic) couldnt be built into regular lines or to prime the open time pump. Simply start the bid month on Sunday. Use the C/O to build an extra 10% good lines and put the bottom 10% trash lines into opentime.