I think my problem is in my profiles. I'm not sure what has happened, but I've gotten my assemblies to work, but my surface is all screwed up. For some reason, the assemblies are not consistently targeting my profiles. They attach to the alignment correctly, but it's hit and miss on the profiles. When I view the surface, it is targeting correctly at the sample points, but the areas in between, it is dropping down 0.5'. I don't know why!!!!