It seems necessary to have both control points and vertices on when working with Subd.
Trying to use the insert vertex command shows a mesh built from the control points, but what’s relevant to that command to build a well structured subd is to see the vertices locations.
What’s the command, insert vertex?
_InsertPoint but the name is misleading what it’s inserting in fact is a vertex
typically you’d want one or the other…in a complex model having both on would be a recipe for some serious visual confusion.
Typically I am aware of the possible result. That’s why I also requsted all these sub-objects to have differet coloring. Switching constantly between smooth and edgy subd modes is a flaw. If you’ve worked long enough on a model you will distinguish pretty well what each object is, given you have slight difference in color.