I did try the earlier suggestion of converting it into a vertex model and then I checked out the result. A massive YUK! It had turned it into nothing but a triangulated mash of which there was no way I would model like that "I always use quads in my modeling" and so I knew the vertex model would show as a larger model than the spline. As far as rendering goes, have never heard of the "Octane plugin".. what is it and where do i get it from?