I am currently setting up a form to register new contractors. One issue I am seeing is with the enforce uniqueness with the naming policy. That seems to work fine if a collection takes place between registering new users. But if you register multiple new users before the next collection takes place you will get duplicates. Is there a good way to overcome this? The only thing I can think of is adding collections to the workflow using web services. Seems like overengineering but I can't think of any other way. Ideas? suggestions?