These are all good thoughts. My biggest frustration is that as far as I can tell using Add Solids on a collection of NURBS doesn't actually produce a real solid. This means that many other solids operations (ie. fillet) will likely fail later in the process and it can be hard to trace why. Can you show how you would use the Section Solids command in place of Stitch and Trim? I'd be curious how that works. And thanks for the reminder about the connect/combine tool. Kevin