templargfx: modeling seams and edges and assigning them to the soft decorated group is exactly the way it can be done. The main problem was the layout of the mesh in the modeling app. It appears that vertices of the soft decorated edge must coincide with vertices of the dynamic parts. And self-intersecting meshes are a big no-no.

The pen is mightier than the sword. But if you literally want to have some impact, use a typewriter

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