Back-tracking | Photo by Brett Michael Spunt | D-18961 Thursday, April 18, 2024 Back-Tracking highlights interesting, lesser-known moments in skydiving through the years. These photos are often unearthed from boxes in the attic, old photo albums and dimly lit DZ closets. Please send submissions to communications@uspa.org. Skysurfer Damian Hrdlicka prepares to dock with a sitflyer during a fun jump over Perris Valley in the early 1990s.