>> After fussing around with extracting trim edges, trimming some of the ends off and untrimming and retrimming surfaces, I got this (model attached):

Hi Michael,

This reminds me of another post where you were talking about untrimming but I can't find it... Could you explain (again ?) what's "untrimming" and "retrimming". What is it useful for and how do you do that ? A bit confused as there's no "Untrim" command in MoI, right ?
Looks interesting as it seems it's a technique to detect or repair problematic surfaces.

Thanks

Schbeurd