I'll back you up Moth. I have to, as I've never been able to distinguish between an interesting thread and a humorous tangent and like to build both with equal enthusiasm.
I DO wish you and lots of others would contribute more though, humorous or otherwise. The mechanical side is a bit daunting I know, and Gordon and Steve have now lost me so they're pretty much on their own on that, but there's an awful lot of archaeological stuff to consider and try to get authentic.