From Tung Ying Chieh there is both stationary and movement training of Fajin. It is found in his 2 fast forms.
That is Tung Ying Chieh second fast form and it is a combination of Yang and Wu(Hao) style. Also it is being modified by Tung Hu Ling due the space he has to do the form so it looks a bit different in a bigger space. However do not get me wrong, Tung Hu Ling was highly skilled and I am in no way questioning his ability or what he is doing. The fact that he was able to modify it so easily is rather impressive to me
And since Chen Fajin was mentioned and for discussion purposes
Chen Xiaowang (19th Generation Chen and current head of Chen family Taijiquan) https://www.youtube.com/watch?v=gj6UaEay5Lg
Chan Yu (19th generation Chen, grandson of Chen Fake) https://www.youtube.com/watch?v=j_vcWq2GYXs
WARNING, turn down the volume, I have no idea who posted this but the soundtrack they added is horrendous and I wish they had just left in what he as saying
Chen Zhenglei (19th Generation Chen and where any of my small bit of Chen training originates either directly or through a student and a grand student) https://www.youtube.com/watch?v=8KS_VZm4QWs