I have been planning on Brockman Mellow tones since I first heard them. I really like the steel sound better than the glass. I will probably go middle of the road and get the medium size ones. I don't want to make too much noise just enough so I don't need a radio.
Echo cans are the same as resonance tubes, maybe I will go without.
Right now I am running a single no name steel pack from the previous owner. It sounds great at idle but I cant really hear it once I get moving.