It looks like my memory failed me a bit on this but I still have some EDGE jaggies (more noticeable on tip taper surfaces, @1318980 here is a project link if you want to help get rid of the jaggies from Mesh 5 
) which is 1/2 of what this topic is currently about.
Here is Hex Parametric Surface Refinement to same levels as Feature refinement of above (Yeah, the ribs are blended 
);
