The sandbox is a helpful feature but often I have a question that I feel needs to be tested before it can be asked. This is usually the case with a cops-and-robbers question or questions with unique scoring systems. Its hard to predict how you specifications will stack up in the wild making feedback not sufficient. As an example my latest sandboxed challenge is an answer-chaining question that probably needs some fine tuning to make sure it will be neither extremely trivial or impossibly difficult to create new answers.
Since I can't really fine tune the specifications of a challenge after it is release, I often feel like it would be nice to test out the challenge with a soft-release.
Is there any way I might do this? Perhaps I should try the challenge in a chat room? Any suggestions are welcome.