Well, I spent several hour reading through the manual, taking my own notes, getting a better fit for the loincloth before the VWD sim., selecting all of the chain as well as the front and back bejeweled parts and nailing & rigidifying them. Ran it through my 30 frame simulation and there is absolutely no difference to my earlier miserable fails. Here is the better fit before the simulation:-

And here is the result from the simulation:-

Any other suggestions on how to stop the "fixed/nailed" parts from moving? Crrently, nailing appears to do nothing whatsoever................