Just wanted to post the latest simulation using ptrope's vastly improved hi-res-square.  What a difference!

I still have work to do--mostly because the new sheet is so flexible, I have to play with the choreographed group to tone it down a bit.  But at least it doesn't look like someone has a cactus under the sheets anymore!

High praise to ptrope.  I can't thank you enough for your help.

And thanks to everyone!

David