NewCheat sheets & tools
Matty Flip Trick Card Sticker
Over the obstacle, flip forward down its back, fly out backwards underneath.

Learn the trick
Press Next move and watch the quad fly it. Each move is one symbol on the sticker.
A U-turn that trades height for speed: roll upside down, pull through, fly back under.
Before you start
Fly towards the obstacle, nose down, and pass just over it.
Sticks steady: just fly your line.
Shown for a Mode 2 radio: throttle on the left stick.
In acro mode the sticks turn the quad, and it keeps its angle when you let go. So every move is the same: push the stick, wait until the quad has turned far enough, centre the stick.
Learn each trick in a simulator first, then try it high up, away from people.
Details
The Split-S drawn from the side: over the obstacle, a half roll upside down, a half flip back that swings you round behind it, and throttle to fly back underneath. The red block on each quad is the camera, so you can always see where it faces. Under the drawing, the same trick written as moves (½R ½F’ ▲), like on the Freestyle Algorithms sticker.
The guide above flies it one move at a time and shows which stick to push. Learn it in a simulator first.
Check the quality of my sticker article here.