The 2016 F - One Diablo was designed by Gin Seok Song .
The 2016 F - One Diablo was then tested and developed by two previous paragliding world champions : Gin test pilot Hans Bollinger and the F - One designer Robert Graham .
The 2016 F - One Diablo was designed by Gin Seok Song and then tested and developed by two previous paragliding world champions : Gin test pilot Hans Bollinger and the F - One designer Robert Graham .