See weight here not such a big deal. I never hit up a track and My rig is about ~13lbs now. Thats why I wondered. But I see a lot of people using just the 4
Maxx - FLM, MMM, CD Med.36x706s
Raja - FLM Ext. MM, 1512, 4s
SC8ight - MMM, 1520, 6s
D8T - MMM 1717 6s