i used to do this a couple times in game for a fast break but only if you have someone in front of you or just 1 vs 1 works either way.

1. get in position in front of the basket in between the foul line and three point line with your man in front.
2. cross it from your left to the right and get close to the man on the left side.
3.spin left keeping the ball in your right hand and go fowards keep on going to the basket (once you've spun u can switch to the left hand so it doesnt get stolen) with your man basically on your side or a little behind.
4. get airborne and spin so your spinning in the air and lay the basket in reverse with your right hand wen you spin enough to the basket (make sure its off the backboard)

good way to make a break look good and without fully beating your man. takes a fair bit of air control but looks good wen put in motion.