Thanks for your reply Stamcom, as an Inspector, when a set of plans are approved,the work should be done according to the plans,..any changes must be in writting from the Designer/Engineer. if any problems that may occur in a wiring system if we allow changes without consent from the designer, then the AHJ will be at fault.Most good designer exceed the minimum NEC requirements, however some electrical contractors will cut corners to make a profit by trying to wire to the mimimun code.