Alex came up with a new trick, the Stem-Boomerang aka Stemrang: "Inspired to learn this new type of boomerang i was starting this tricks 3 weeks ago and filmed all steps ,it took me 1 week to do a double and then 2 weeks to pass 3 times over the frame to complete a 4 stemrang . Hope you like it , old school influence brakeless of course."
Ok, let's set the next challenge, what about a Crossbarrang?