On Friday, February 22, 2013 7:02:39 PM UTC-6, Bob wrote:
... any advice on the best orientation for it,

Everything before the wire part is a power transfer system with certain known/measurable disadvantages such as efficiency. The wire part is the radiator and obeys the same laws of physics as any other wire so the rules that apply to other wire antennas also apply to that wire antenna, e.g. at least 1/4WL in height for horizontal mounting, no more than 5/8WL long if mounted vertically, etc.
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73, Cecil, w5dxp.com