Thanks for the detailed response.
I tried a few boolean operations & projecting curves between surfaces and like you said the resulting curves from projected and intersecting surfaces are extremely complex they seem to have thousands of points. Alias did the same thing except that it had a nice tool that could rebuild a curve from that complex curve that had resulted from projection or intersecting boolean operations. I would use the rebuild curve tool as often as possible to build what in my mind were cleaner models. I think this was because I thought that trimmed surfaces were actually hidden and still actually physically there. So I would go back in with a network of curves and rebuild the hole into the surface.

I think my question would be is it possible to have a rebuild curve tool for curves resulting from such operations.