Exactly. I imagine it is a bit complex, I do not know if it is feasible to do(of course it is a proposal), but if it could be replaced maybe the Extrusion Vector with Profile in Profile Manager .
It is becoming more flexible the Extrusion Vector than being a straight line, or the straight line can be edited as with lines,polylines ...
Especially in Ruled-Detail method.
translation->google
Regards
Vasilis