Some embodiments of the invention provide a method for defining wiring directions in a design layout having several wiring layers. The spoke includes an aerodynamic shape with a leading side and a trailing side and, extending from the leading side to the trailing side, a first side and a second side, opposite the first side. Accordingly, the present invention also encompasses an improved method for converting a hydrocarbon containing gas and an oxygen containing gas to a gas mixture comprising hydrogen and carbon monoxide, i. The feed horn, hub, orthomode transducer and antenna segments are designed for extremely compact stowability in a variety of applications. The method comprises the steps of connecting a drive shaft simulator to a rotary device and, rotating the said device to simulate drive shaft unbalance due to misalignment of the rotary device and the drive shaft being simulated when the drive shaft and rotary device are connected together.