Anybody have any experience with odd number of drivers? I built a box for 2 zv3 18s at 5 cubes per driver but feel thats too small. Thinking im going to make it 6 cubes each at around 35hz. Im going to be walling it in a expedition, this would be my second wall, I know its all about bracing, bracing, bracing! Who would be good at designing a box for me? Ive never paid for a design before, who can I trust to actually look into the drivers and design it with knowledge?