A very easy achievement, but suprisingly, some dont know how or what to do.
This achievement is worth a grand 20GS, a big amount for something so easy. Now this trick can only be done in certain areas, because it has lots of down time on it. It needs to have atleast 4 seconds of hangtime to preform. I'd suggest going to the chan center, and doing it over the shark, if your early into the game. If not, make a park with the mega ramps, or just download one with mega ramps. Mega ramps have to be the easiest way to pull this trick off.
First off, how to do the trick.
Right after take off, grab the board with both hands(RT,LT). Then hold the 'B' button. Then pull back or push foward on the left analog stick.
Remember, grab the board with both hands and hold down 'B' BEFORE you start spinning.
You character should have the board above their head with both hands.
Now you just need to land it. Besure to set a session marker where you want to start, because you may mess up.