Read the extended version of Jim Slaton's article that was featured in the July 2010 issue of Parachutist magazine.
Link - [url=http://www.canopypiloting.com/index.php?option=com_content&view=article&id=310:evolution-of-hp-parachutes&catid=1:latest-news&Itemid=81]www.canopypiloting.com[/url]