BS 270 On.

1. Approach the box straight on from your backside, where your chest faces down the slope.

   Keep your speed slow enough that you won't stall, ride the base flat, and put your eyes on the on-ramp.

2. One to two meters before the lip, wind your shoulders and arms slightly toward your frontside to load a coil.

   The more you pre-wind the opposite way, the easier your body unwinds into the spin. Keep looking back over your shoulder at the ramp.

3. Drop into a deep crouch, bending both knees to about 60-70 degrees.

   Keep your weight even across both feet and your center of mass stacked over the board. Do not start the rotation yet.

4. Snap the coiled shoulders back toward your backside while you ollie, shifting a little weight onto your front foot as you pop.

   Your upper body leads and the board follows. The spin's momentum is set the instant you pop and can't be added in the air, so release the coil fully here.

5. Once airborne, pull your arms in and tuck your knees to stay compact.

   The same momentum spins you faster when your body is small, which makes the 270 (three-quarter turn) easier to complete.

6. When the board points straight across your direction of travel, stop the rotation and line your hips and shoulders parallel to the long axis of the box.

   Stopping the opening motion here prevents over-rotation.

7. Land with the whole base flat on the box, weight even between front and back foot, center of mass right over the box.

   Shift your eyes to the exit ahead.

8. Ride it out in a backside boardslide stance and roll off the end with the base still flat.

You can pin your own clip to the tricks you've landed (My Video).