Earl how can you justify your interpitations based on...cables must be stacked or bundled for more than 24" before derating shall be enforced? Bored holes through wood framing are usually less than 24".If in fact we come through a hole and the wires aren`t bound together and are separated even if slightly they are separated and are not bundled for more than 24" sorry I just don`t get how they could be consitered bundled Can someone define bundled