Well stated Larry.

To carry it one step further, Lightning tends to behave like high frequency energy. It will follow the rules of nature and attempt to take the path of least resistance (or paths), but since inductive and capacitive reactance come into play with high frequencies, what appears the "least resistance path" to us will not necessarily be the actual path of "least IMPEDANCE" to the lightning bolt, and with anything but DC, it is the impedance of the circuit that matters, not just the actual DC resistance.

Larrys advice for grounding is very solid information.