For the last month at least the site's responsiveness has been atrocious. Today, on average, from the time I click on a link until the time the page finally responds is 25 seconds or more. Once it does finally respond the page loads rapidly so the issue is on the DB end, not choked bandwidth. It makes trying to shop an exercise in frustration.

EDIT: just posting this comment took 47 seconds from the time I submitted it until the page finally accepted it and updated.

Thank you for the explanation. That clarifies where the issue is coming from for some of the clothing items since many vendors map for texture convenience and that doesn't always respect the scales of the topology. As you suggested, when I took a piece that was behaving poorly and un-wrapped it to a new UV-map, I was able to get far better results (although of course I then couldn't use the original textures supplied by the item vendor...I had to switch to tiling seamless ones instead). It's not ideal but I understand the necessity.

Unfortunately some further experimentation shows that my "fix" above doesn't always work. It also mysteriously sometimes seems to lose the fabric zone (even though it retains the material definitions) and when I was trying to work on something yesterday my saving a new one as an asset somehow overwrote a previous save in addition to making a new one. I'm pretty new to all of this so I'm undoubtedly doing something wrong so I guess I'll just keep on experimenting until at least I can get consistent, predictable behaviour. Some feedback from the vendor would definitely be nice, though.

I've been experimenting with this, too, on a variety of items. For mysterious reasons some work great, others decide they need to shrink themselves to extremes, and yet others become incredibly loose (like scale 200% or worse!).

By accident, I found a solution. The critical thing is immediately after running the DynCreator save the item as a Dynamic Cloth Asset, then delete if from the scene, then re-add it from your saved file. As long as you do that, when you drape it will respect the geometry properly. If you don't, it seems to be utterly confused about the "rest" position.

A second workflow thing...

If I start with a clothing item that is a conforming one, then convert it to a prop, sometimes the object will simply refuse to react to the DynCreator script. If you export that item as an obj file (format doesn't seem to matter...I use Blender), delete it from the scene, then re-import your saved obj, the script works fine (although after running the script you have to save it as the Dynamic Cloth Asset first, then delete, then load your saved one). Often you need to do this export step to clean up/connect parts anyway so it's not that big an issue.

Perhaps not the most efficient workflow, but at least it works.