[EricH]

Originally Posted by Dr Theta

By my interpretation of the rule their is no set limit vertically, as it would be rather difficult to raise a 40" diameter ball less than 80" and still manage for it to pass over an overpass that is 78" off of the groung that is why the rule specifically states an 80" circle in the horizontal plain.

It doesn't say 80" horizontal circle. It says point to point measurement (the circle is an example).

Unlimited height is a good thing...