Yup, that's the one. I did have a go in hex, but have to be honest. At the moment nothing is quite gelling in my brain. I have never done any 3d modelling, so its not going well.

I have actually managed a reasonable facsimile by using Steve Ray's incredible morphing cube. Rough but it will do at a pinch with a good tex map.

The greatest part of wisdom is learning to develop  the ineffable genius of extracting the "neither here nor there" out of any situation...."