I almost always run 4 rods due to the number of people that fish with me. I will always run 2 riggers, one on each corner and one wire diver per side. I will generally run spoons on the riggers and spinny/flys on the divers. If the spinnys are hot i will run one on the rigger too. If you have a third or fourth person go thats when i would add your copper and lead. with your 300' copper you are limited to depth so unless the fish are in the mid to upper water column i would stick with riggers and wires to cover greater depths.
MIKE