When I got back from my trip to San Diego, I found a rejection letter from F&SF. I’m not sure whether it arrived on Thursday, Friday, or Saturday, so I’m splitting the difference and calling it a total of 18 days, which is ten days longer than my previous submission.
The rejection letter was from the editor, not the slush pile reader, so at least I’m making progress.
Now I have to figure out where to send the story. Analog still seems to be overstocked on longer work — and I’m still waiting for a response to my March 3 submission there, anyway.