@ Dann-o / pearce.....I looked into Metasequoia but found only a limited file save version. Apparently he doesn't sell the version (outside of Japan) that saves out any file I can use. Is that right? It looks like a very useful app for me if for a smallish price. Did you find some way to purchase it? I tried the demo of Silo and like it a lot. With just a little more development in splines I might get that one for ease of modeling. Thank you.