I'm just gonna toss this one out there for possible future EONA designs. My favorite ADR box of the bunch is the single 18" sub, it's a real asskicker. A good application of it is as a drum fill sub, and here is where my idea for this suggestion was inspired. The way we have been running the sub as a drum fill is up on one end with the "handle" side to the floor. Perhaps it would be good to put some small feet on one of the handle sides of the box so the (very durable) coating doesn't get to messed up when running it in this configuration and having musos and stagehands slide it around the stage (instead of picking it up, it's what, like 65 pounds?). Might also make it easier to slip a handtruck under it too when it is on end.