When doing an Acceptance Test the E Gen must be able to run the car from the top to the bottom with a 125% load without tripping the the governor electrical speed switch. Then remove the 25% overload and run the car with a full load up and down and check for proper operation. So after the 125% run to the bottom you can run at a reduced profile as long as you have proper operation. That is my opinion of how the code reads,this come from A17.2-2014 Inspection Guide.