Unfortunately, Subterranean only announced the limited edition after I had ordered the trade, so it was buy another at 60 bucks or be content with the fewer pages.
Yeah, in Writers of the Dark (which I also have) it's not made clear whether carbon copies (which would of course have been necessary unless HPL saved FRL's correspondence) were made, or where they are if so. Could be among the U of T papers, possibly. You seem to be saying that carbons were made. If so, I'd be very interested to know where they went/are.
I found the majority of the essays in the Critical Essays volume fairly interesting and well thought out, but extremely poorly edited. My M.A. committee would never have let me get away with some of the crap the articles in this supposedly learned publication did.
Aside from my gripes about John Pelan (he owes me, and a fair number of other authors and readers, a substantial amount of money over the Cthulhuian Singularity debacle), he's absolutely correct, Leiber has been totally ignored by academia, and that's not especially surprising. REH was and is a far more popular author (though a far inferior writer, IMO), but even he has received fairly little actual scholarly attention, and fantasy literature in general has been historically neglected. Even JRRT gets only a little nod now and then, and mostly from Oxford dons. I thought the articles themselves were generally well done, and it was about time. Szumskyj just wasn't the man to do it properly.
An interesting thought, Joshi doing a take on Leiber. S. T. Joshi, of course, is the premier authority on all things Lovecraftian, and I agree that his annotations are well done. I don't necessarily think he needs to be the guy to do the analogous Leiber volume(s), though... Perhaps you and I?? Don't laugh, it could happen...