I've followed the back/forth on here re: whether to use a pen name, but I've already decided to do so for various reasons. For those that are querying/submitting short stories, etc., do you actually query/submit under the pen name? Do you say it's a pen name? I've set up a gmail address with my pen name, as well as a twitter handle, etc. (also reserved the domain name, if I ever get around to making a web page). My inclination would be to query/submit under the pen name, but I'm wondering if I need to (or should) disclose that it's a pen name on submissions.