Changing the location of a buffer bay in a netlist

A method comprising:

• representing a buffer bay with a moveable object having a location within a unit in a netlist stored in a storage device;
• changing the location of the moveable object that represents the buffer bay to a new location in the netlist if changing the location improves placement within the unit, wherein the changing the location if the changing the location improves placement within the unit comprises considering a net weight in determining whether to change the location to the new location, wherein the considering the net weight in determining whether to change the location to the new location further comprises creating an artificial pin connected to the moveable object via a net;
• and
• removing the artificial pin after the changing the location;
• converting the moveable object into a hole in the unit, wherein the hole is devoid of any circuit.