Walk-In Extension (Single Base) This stunt goes up fast and looks impressive, which makes it great for 30 second time outs. You need to have a very strong main base and an experienced flyer. This stunt starts like any other walk-in position. Once the flyer's foot reaches the bases hands, the backspot should be grabbing the flyer's right ankle and pushing up on her bottom. The whole stunt group should lift the flyer while she starts to stand up. Once the flyer is as high as the bases heads, the main base can start to grab the flyer's free foot. The flyer should continue going higher. The backspot should then grab both of the main base's wrists. The main base should be standing up all of the way and the stunt should be secure. The main base will do most of the cradling by bending her knees and popping the flyer. The main base should turn to catch the flyer like a normal cradle. This stunt is perfect for when you need something that goes up real quickly.