The VM in Carrara is now quite good and I use the VM modeler more than I ever have. Some of the VM functioinality and workflow has been ported from Hexagon. Hexagon is great - especially for organics. As a pure modeler, Hex has some controls that make complex models very easy to manage. Like Shonner, I used Amapi for my main modeler. Now, I'm a complete convert to Hex - it's very stable and fast to use. Now, I use Amapi only when building and modifying files for some manufacturing clients that use CAD and PRO E files. Amapi is an excellent program and offers features not in Hex or Carrara. I just don't need those features that often.