Combo.

1. Before the first spin (Frontside or Backside 180), set up by sending your eyes toward your direction of travel and pre-winding your shoulders and hips slightly the way you want to spin.

   Letting the upper body lead first makes your body rotate naturally once you pop.

2. As you pop off the ollie, immediately pull both knees up toward your chest to make your body small.

   The spinning momentum is locked in the instant you leave the snow and can't be added in the air, so the more compact you are, the faster you spin with the same effort.

3. As you land switch, set down on both feet evenly with the base close to flat, and bend your knees deep, to about 60-90 degrees, to absorb the impact.

   Keep your weight centered over the middle of the board and your hips stacked above the board so your upper body doesn't dive forward.

4. Don't stop at that deep landing crouch - use it directly as the spring for your second ollie.

   From the bottom of the compression, shift your load from the front foot to the back foot and pop the tail by pressing the snow away through the ball of your back foot. If you stand all the way up first, the momentum dies, so popping straight out of the crouch is the key to linking them.

5. Do the second spin (switch ollie 180) the same way: send your eyes and shoulders the way you want to turn before takeoff, then pull your knees up to stay compact once you pop.

6. For the landing back into your normal stance, again set down on both feet evenly with the base close to flat and absorb with your knees, keeping your hips over the board and your weight centered so you roll cleanly into the next run.

7. As a prerequisite, you need the FS/BS 180, switch riding, and the switch ollie 180 all solid on their own.

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