MSP actually ran a bunch of zip lines for a while back around the Focused years--Bachelor, Whistler pipe, Copper rail, Hood Meadows... Pep had some sick shots, as did Pollard and Bushfield, Turpin and CR. Mack Dawg was doing them as well, all set up by the guy in the mountain bike flicks who had pretty much mastered them. Can't really claim they were an Iberg innovation.