I just came across this blog/calendar thingy:
People who use it seem to post anonymously, and the totally neutral posts focus exclusively on various agents' turnaround times, with zero editorializing or personal commentary. They post about all sorts of turnaround times (e-queries, snail queries, partials, fulls, and any other possible variations thereof).
It's kind of interesting to scope out if you get the chance.
If this has already been mentioned, or if it belongs in another forum, my apologies.