Some of the top organza in mine float away from the body, though the roughness of the edges (which you won't have to deal with) prevented most of that action. Overall, organza worked out much better than I expected at first, even though I did have troubles with fraying and tangling.
I found that black organza is plenty light, even with several layers. When I make my next mistcloak, I won't bother with any colors other than black, as it doesn't look black in any light. Also, the shininess of the organza is either good or bad, depending on whether or not you want the cloak to look like fog or mist. You probably read this in the other thread, but...
How did you cut the organza straight? I had endless trouble with a rotary cutter as well as scissors, though I didn't attempt any sort of ironing beforehand. Oh, and what is the machine called that you cut/sealed the edges with? I'd like to see if I can't find someone who has one around here, as that sounds a lot less expensive than buying loads of ribbon.
What is the yoke material? How is it finished? Are there any other layers to it? I can't wait to see pictures of it put together!