I never heard back on my partial, unfortunately. (For those tuning in just now: I sent a snail mailed query in early October to Merrilee Heifetz, got a request for a partial via email, which I sent in right away. Waited seven weeks, then prompted her assistant once to make sure the files got there okay, and was told that she'd have a response to me in a couple of weeks.) It's been two months since the last word, so I'm assuming at this point that there's no interest and I've sent out fresh queries. My MS is out to another agent now, one who's been absolutely super in emails, and he gets priority on it at this point.
It is strange that I haven't heard back anything--and somewhat frustrating as I'm out a stamp on the SASE I sent with my original query. I might prompt Ms. Heifetz's assistant again just for closure, but only if my current reviewer passes. As it is, I'm afraid I have to call this one a scratch.