I do not understand how this new C+ to B- ride classification works???? The C+ to B- ride sound a lot like a B- ride. MY main question is if a were to lead this ride what is the responsibility of the ride leader and the job of the sweep if the ride has a sweep????

Example if a am leading this ride for example I have 10 riders. 6 riders are biking at a B- pace. the other 4 riders are biking at a C+ pace. Do I lead the B- pack and leave the 4 C+ riders with the Sweep. My other choice would be the rabbits run ahead and stay with the 4 C+ riders. There are no clear guidelines for the Ride leader or Sweep to follow on this ride. My point is that both the C+ and the B- riders belong on this ride. We end up having a mixed group so who does the ride leader accommodate??????