Flow Target surface issue

 From:  Frenchy Pilou (PILOU)
11471.12 
The Burr method is very cool!

The funny is that i had not seen that the opposite face was not trimmed!
and that i had redrawn the seamed face one for nothing! :)

PS Why the pieces to Flow are "symmetric" vertically?
The middle top part is not sufficient ?

EDITED: 14 Jul 2024 by PILOU