Practice going up along a wall first. Aim your rocket something like 15 degrees down and outward, and try doing it just like hammerfly. Rocket every other hook. You can aim outward a lot further than it might seem and you'll still hook the tee. When it comes to doing it without a wall, it really just comes down to practicing what angles work and how to adjust. Changing rocket angle slightly and adjusting how much you tap left/right will allow you to fly in different directions. Baby Aim 1 has a rocketfly part where you just go up along a wall and then switch to another wall. Maybe a good place to practice. Try watching this video and copying the angles this tee does. Just Rocketfly 1 is the perfect place to learn how to do it without a wall.
https://www.youtube.com/watch?v=wyn4Xfj0Z0I
Practice going up along a wall first. Aim your rocket something like 15 degrees down and outward, and try doing it just like hammerfly. Rocket every other hook. You can aim outward a lot further than it might seem and you'll still hook the tee. When it comes to doing it without a wall, it really just comes down to practicing what angles work and how to adjust. Changing rocket angle slightly and adjusting how much you tap left/right will allow you to fly in different directions. Baby Aim 1 has a rocketfly part where you just go up along a wall and then switch to another wall. Maybe a good place to practice. Try watching this video and copying the angles this tee does. Just Rocketfly 1 is the perfect place to learn how to do it without a wall.
https://www.youtube.com/watch?v=wyn4Xfj0Z0I