ASHRAE compliance with naturally ventilated building

As per the guidelines, my baseline mechanical system is incorporated into the naturally ventilated design case model 1 to 1, as a priority 2 kind of system that kicks in when the naturally ventilated facility does not meet the heating cooling or ventilation loads. However, the autosizing is currently also on in the design case building and system sizing has shown reduced capacities for the mechanical systems, as expected. Is this allowed or should I manually input the sizing results from the baseline model for coils, fans, pumps etc. In end effect this will not change anything, but I'm not sure what the LEED reviewers will think about it. Any opinions? I am using e+