Yup, it's that time again--I need to start getting my agent list ready to query. But it's been over two years since I've done this, and I honestly can't remember how I did this before. With so many agents listing as a NR = N, I'm not sure how to send out queries in batches anymore. I mean, of course, send x amount at a time, but how often do I send more out? If I wait for a response each time, it'll take me years to get through all of the agents, but I don't want to send them out too close together, in case I revise my query in between.

Does two weeks make sense? A month? Agent response times are *so* variable, I feel like I'm playing darts blindfolded.