I have been having some trouble exporting a model from Fine/Turbo to Pro-Star using an iges file. The splines get, for lack of a better word, jumbled. Is there a better approach via another file type, etc.? Thanks.

I don't know anything at all about Fine/Turbo but perhaps there is another common denominator you could use. pro-STAR reads meshes directly in patran, nastran, ansys, cgns, ideas, vda, ensight and maybe a few others I don't know about. Instead of iges, maybe you can find another common format.