Very interesting ! Thank you for sharing that example. It looks like it would require quite a bit of planning, but I can certainly see how this could be useful when specific designs allows for it. Good stuff to keep in mind !
Konras : do you have any practical example of this ? I am not saying that it is impossible to do, but it just seems unnecessarily convoluted and hard to predict. (however, I would be happy to be won over if that technique turns out to be useful !) Regarding the normals changing after face deletion : I think it would be…