Someone suggested that a Boomerang will not knife edge. Well my baby Boomerang with a Wren Supersport certainly would knife edge as well as flying high alpha stuff { am a 3D hooligan ]

Here is a clip of Ali flying a Boomerang Sprint. He shows it surely does knife edge.


I know I benefited from starting my turbine flying with a Boomerang because the access to the gubbins with the top off is great and it wont bite you if load it up in a turn. Also there is a healthy demand for used Boomers so if you cut your teeth on one they are easy to sell on.