[Andrew]

There's always _some_ risk - you might hit the wrong button at some point, or you might run into some difficulties if the new WebDAV server doesn't support some element of the WebDAV standard that we require (something that turned out to be a lot more common than we anticipated based on our testing). Therefore, I recommend that you do a backup (via the File menu) first so you can restore from that if need be.

However, I've done this a number of times, and it's a somewhat common thing at Omni to use this in order to switch between test data. I doubt you will run into any problems (again, unless your new WebDAV server doesn't fully support the WebDAV specification).