This is what I did wrong, three vectors, but only one is allowed:
SetPMI (_V(3.1,0,0), _V(0,3.42,-0.4), _V(0,-0.4,0.68));
How do I get the three vectors (from shipedit.exe) into the correct format for the SetPMI function? Is it just a simple calculation, like addition of the vectors?