Shanghai Wu Fast Form punch is a little bit different from the normal punch. In the book, it is written as:
In a different edition of the book, the 2nd word (edge/side?) is removed.
To see it in action, take a look at Shen Tie Gen Wu Fast Form:
Around 42 seconds is the first punch.
Also Ma Yue Liang's one on google:
The first punch comes in ~1 minute (well, master Ma is about 30% older than master Shen )
The punch is a little bit "over the top" type of punch. "Over the top" used not as an expression, but to describe its trajectory.
Appreciate any translation help. Thanks.