Getting a REST model to "draw" its fields down from the service?

Hmm, that’s not what I’d expect — this should work either way, with Read-Only or Read-Write. It might be an issue with Skuid trying to be smart and copy your Service URL, Verb, Path to Contents, etc. over from the top-level Model properties down into the Query method, which it does when you switch from Read-Only to Read-Write. It might be instructive to switch to Read-Write, then see what’s in the XML for the Model’s Methods. (Go to “View/Page XML” and then look for the node within your Model’s XML.

But if that’s not working, it might be a bug.