Or, you know, there is THIS approach!
And "dipping" as he entered the circle.Trail braking.
Also always helps to keep your front wheel as close to the cones as possible as you begin the exercise so that you can use all the space available. Not a comment on the video, just a comment on doing circles inside cones. Keeping your head up and looking through the turn and as far ahead as you can helps as well.And "dipping" as he entered the circle.