Once you start working with clean surfaces and the lower degree you can, it’s always necessary to rebuild and change the degree of the geometry.
But, when you have a case like a surface with 4x4 points and degree 3, and you want to modify to 3x2 degree, it’s almost impossible to know if you are changing the U or V direction of the surface.
Although we can customize the color of the span, this is something confusing that could be solved with a preview of the control points during the process.
Does that make sense for anyone more than me?
This is something I miss from VSR VSR Shape Modeling 2.0 Release - YouTube