I relocated the controller to the topside on the inside of the battery box. This way I can lay down all the batteries. Well it worked for a bit and controller died on me. I'm sending the ESC in for repair and in the meantime hooked up a sensorless controller. I'm not too happy with it, so have decided to hook up a Sabvoton controller instead. Hopefully I can figure out the wiring and not so user friendly program app.