Got my wavebox and extension. I have a single wavebox running currently with about a 1" wave. I am wanting to see if I can get the double wave and was wondering the best way to go about it. The front of the tank is clear the entire length of the tank. Should I run the 2 boxes in synch to create a stronger wave? Run them at opposite ends out of phase? I understand the concept of doubling the frequency on the controller, just wondering if others have used their wave boxes to create a double wave. I am assuming that a double wave will work better with my two overflows as the axis points would be closer to the overflow boxes which are on the back about 1" from each end of the tank.