Uh, concerning what that guy in that video says about the mounting position.....
Cold fluid is thicker than warm fluid, thus why it will only run in the first few larger tubes when it's cold and you don't need all the cooling surface. As the fluid heats up, it thins and flows through the smaller tubes and utilizing more surface.
Kind of an internal thermostat for the cooler.
As for bleeding air, he said it's an open system with a vent and fill/dipstick tube, SO WHAT? It doesn't have to be a sealed system like the cooling system. The engine crankcase is an open system also. There's air in the oil passages, and on top of the heads under the valve cover and when the motor starts it has to push that air out so the oil can flow/drain...what a moron, lol