Can the solid wooden backstop ("no holes nor filled holes") be attached to the car via a dowel, screws, bolts, or other mechanisms that would effectively create filled holes? What if the dowel/screws etc do not infringe the front-most 1.1 cm of a ...
Holes on the back side of the backstop for screws, bolts, dowels, or other attachment components are allowed for the purpose of attaching to the vehicle.
