Would it be possible to add Sub-D output to the EdgeSrf command? The EdgeSrf command respects curve structure input. This could be a way to create really clean Sub-D starting surfaces before control point manipulation/bridging/welding, etc.
You can layout really clean single-span degree 3 or 5 curves, rebuild the curves to degree three with desired segmentation and use EdgeSrf with Sub-D output to create a very clean starting surface.
It’s actually already possible to do this, it just requires several steps.
-Layout design curves as desired
-Rebuild to degree three with desired segmentation
-Run EdgeSrf command
-Run ToSubD command
Having this as part of the toolset would make it more discoverable.