Hi Pilou,

re:
> Now you said that we can do the same with the Adjust Blend Parameters of the Beta V4 but How ? :)

Just click on one of the edges you are blending between before you exit the Blend command. That will flip the edge direction that is being used for the blend construction.

That is set up so if the automatic twist reduction fails for some reason there is a way for you to correct it manually.

- Michael