Quote Originally Posted by tryanDLS View Post
Creating a new proxy object is not the right way to handle this. My example missed an object - it should be:
store.proxy.conn.url = 'newurl';
This seems to have fixed my issue for the moment. Thanks!

It appears that Animal's solution may actually be the official solution to my problem. So when I have the chance I'll have to come back to this and try that approach. Thanks for the help everyone!