I have an older 200 amp breaker box made by cuttler hammer. I know some GE BREAKERS WILL WORK ON IT BUT ONE OF THE BUSS BARS IS SMALLER THAN THE other. I am adding 2 new rooms on and have the breaker slots avaliavle but don't have the lugs on the bussbar. I saw a ge bussbar with 42 lugs at home deopt. That would free up all the room I need without doubeling up the ground wires, which is out of code is the ge bar compatible with the cuttler hammer bar?