To get the 4 AWG Bare GEC from the Inverter to the Main Service Panel, we stapled the GEC to the drywall at the 16" OC stud locations in the Garage = "Securely Fastened to the surface". After 10' of drywall, then we penetrated the common wall to enter the basement where we have drilled holes through the joists all the way to the Main Service Panel. Is stapling the GEC to the finished garage drywall "protection from physical damage" ?