Lets say you start upright, add back elevator and positive collective to start the rainbow. When you are inverted and coming to the ground, you give it a LOT of negative collective to instantly stop the heli (makes a GREAT sound as well), then let off to hold it for a second, then forward elevator and more negative to go back to upright. When you are ready to stop at the other end, again full positive collective pump to stop it and make a great sound. This is explained in the "How to tick tock" video from smack. Explained Much better than I can type it here lol