The short version
Downunder Dynamics is Mason Corby's coaching operation. Skydiving, wind tunnel, and everything that sits underneath both — body mechanics, aerodynamics, spatial awareness, and what your brain does when the air is moving past you at terminal velocity.
The work is not about copying a body position. It's about understanding why your body does what it does, so the correction holds after the coach goes home.
Mason
Skydiving since 2006. More than fourteen thousand jumps, and over twelve thousand hours in the wind tunnel — three of those years full time before going back to the sky in 2016. The combination is where the coaching comes from, because most coaches have one or the other, not both at depth.
The ratings cover most of what the sport has to offer: tandem master, AFF instructor, tunnel instructor and coach, military freefall, static line. Day and night, land and water.
Beyond that: world record skydiver, Atmonauti Instructor-Master Navigator No. 18, aerial display performer, and an Australian Army veteran.
He founded the Body Piloting Championships, a competitive indoor discipline now flown as its own category at Australian national level, and has worked alongside the Australian Parachute Federation on coaching events, regulation amendments, educational resources and coaching programs.
That background matters for one reason. The coaching comes from someone who has had to solve these problems under real pressure, across every discipline the sport has, rather than someone repeating a syllabus they were handed.
How the coaching works
Most coaching tells you what you're doing wrong. That's the easy part, and it's usually visible on the video anyway.
The harder question is why. A leg that won't stay where you put it might be a mechanical limit, a habit built during your first fifty jumps, a spatial awareness gap, or your nervous system quietly refusing to let you commit. Those need four different fixes, and treating all of them as "arch harder" is why people plateau for years.
Sessions are built around your actual goal. If that's a competition, we work backwards from the competition. If it's flying safely with your mates on a Sunday, we work on that instead. There's no fixed curriculum you get marched through, and no discipline you have to pretend to care about.
Where it runs
Coaching runs across Australian tunnels and drop zones, with camps announced through the year. Online coaching has no location constraint — footage in, analysis and a plan back out, wherever you are.
International work happens too. Downunder Dynamics has coached at skydiving festivals and camps overseas and picked up medals at competition along the way.
The team
Downunder Dynamics has taken a few different shapes over the years. It started as a one-off skydive event after Mason came back to Australia from Europe, grew into camps across tunnels and drop zones around the country, and has run with several coaches at different points.
Today it's Mason and his brother Harry. Harry instructs at iFLY Downunder in Western Sydney and coaches in the tunnel; Mason coaches in both the tunnel and the sky, across every level and discipline.
Full details and rates are on the coaches page.