Archie:
Crump worked in sand, had several years of trial and error, and had a lot of help and advice from others. Thomas would have been a professional architect, if he wasn't already too wealthy to bother with it.
But, I wasn't supposing that nobody but a professional architect can "do" architecture. I was just responding to your post that seemed to suppose that making decisions about shot values is all there is to it. You, certainly, know there's a lot more to it than that -- and I suspect that, if you are being honest, you would admit that it was some of those other things besides shot values which held back Twisted Dune from the product you dreamed of providing.