in my opinion, Su is a great postures practioners.
However,
Su doesnt have the fajing kung fu such as the above post.
I look at other Su's application clip and his power generation is usual karate, boxing, wu shu or ordinary people type. his inside and outside three synchronization (Nei Wai Shan Her) is good for posturing but when it comes to momentum generation he doesnt do it at all or just being very plain similar to the wushu person above.