Unlike in a pairings bid group; when awarding a reserve block the N-PBS Scheduler does not perform any optimization, such as substitution, swapping or shuffling, nor does the N-PBS Scheduler enter denial mode. However, Coverage Awards may occur to ensure proper coverage. The N-PBS Scheduler tries to give people a reserve block that attempts to honor as many reserve bid preferences as possible.
■ when the N-PBS Scheduler starts processing a Reserve bid group it reads the first line Start Reserve and checks to see if a legal reserve line can be built, and then if possible, a legal reserve block is built
■ the N-PBS Scheduler reads the first bid preference and then attempts to build a reserve schedule honoring this bid preference
■ the N-PBS Scheduler then reads all subsequent bid preferences, in order from top to bottom, and attempts to build a reserve block honoring as many of these preferences as possible keeping any preferences already honored
■ for example, if the first bid preference is honored but the first and second together cannot be honored, the second preference is denied and the N-PBS Scheduler reads the third preference and attempts to honor preference 1 and 3; this process is continued until all bid preferences have been attempted
■ this type of processing awards the best possible Reserve block using the bid preferences provided by the bidder