There are two reasons.
one
Nunchaku itself is not a difficult thing.
You chose the actual performance style of nunchakus combined with "stunts"
So you just need to learn "stunts" (whether it's Taekwondo stunts or XMA, you can learn it in Shanghai and Jiangsu)
Just combine nunchakus.
How to combine, the key depends on observing others and knowing yourself.
Self-study is a good method.
two
I admit that xu teacher is a master of nunchakus in China.
But in recent years, it has lost its vigorous vitality.
Snow Wolf is a new team.
The technical strength has surpassed that of Xu Shoubo.
And it is developing rapidly. Going there is sure to follow them to grow rapidly.
I hope it helps you.