Hi Billabong, some of the surfaces in here are a little odd, like this strip here:







That looks like it wants to be an extrusion that is trimmed but instead it's something that's surfaced directly between 2 long curves, unlike an extruded surface all of the surface control points are not all in one single direction there is kind of a skew between them in some areas.

I mean it's still a surface but it's more complex and less accurate than an extruded surface.

- Michael