I dont think this is in terms of surface curvature what I am looking for.
The zebra system is good to check if two surfaces flow G0 G1 G2 into each other.
The curvature map is easier to use when looking for noise deformations on a surface.
Obviously the best are surface curvature combs
The mesh analysis is actually working fine.
This will serve well using also the shader based evaluation for checking the surfaces next semester when my students starts using sub-d in Blender for modeling.
I love that one ! it makes quick poly mesh based concept modeling in blender with sub-d and booleans very useful when rendering the concepts before doing a clean cad in Fusion.