When you compare forms with the same name, they are completely different in terms of content and sequence. It's almost as if they are different styles.
The Fut San Hung Sing lineage doesn't share in this problem. However, Chan Heung did NOT, i repeat ....DID NOT create all of the CLF forms. Many students of Chan Heung created their own material based on what they already learned. in 1970, they corralled as many CLF forms they could and lumped em all up in one basket.
Hung Sing Boyz, we gottit on lock down
when he's around quick to ground and pound a clown
Bruh we thought you knew better
when it comes to head huntin, ain't no one can do it better