Hi rom,

> allow me to get kinda tolerable topology but create excessive polygons (light blue) and
> long triangles marked in green which I can suppress with Max's Welder modifier.

Ok, but I hope you understand now that there is no difference in render quality from doing this.


re:
> BTW is it possible to add weld radius value next to "weld vertices along edges"?

The welding option is for whether to make single shared vertex on edges between 2 surfaces, or whether each surface should have separate vertices stacked on top of each other along their joined edges.

A radius value would be a pretty different thing, more like a polygon post processing operation.

- Michael