Agreed!
To get my geometry into its own separate file out of Autocad, I normally will select it all and a wblock command which will write it out as a block - essentially its own file. Then if I need to I go into that file and audit and purge and remove unwanted layers.
And I tend to export from CAD in phases. I NEVER ever ever try to export everything at once. I wil generally make a large "X" symbol in my CAD file and then I always export that with everything that I export, so I can always line up that X inside of SU to make sure it all lines up correctly. I export first my topo, then a layer for fences, then a layer for concrete, then building footprints, etc. THat way I can deal with them all much easier inside of SU, separate from one another.
I once had an old instruction sheet of how I like to export my CAD stuff. I'm sure its still around but I think its very outdated and I've updated some workflow issues. I should get that out and re-write it.
Chris
