While browsing different threads on the site I discovered this post.I mainly use the KJV and in my Seminary papers, I cite the King James almost exclusively and in the bibliography, I cite the publisher as UK: Cambridge University Press, Cum Privilegio 1769. I do this as a matter of principle to point out that #1, there is a perpetual "Crown Copyright" (KJV is not public domain), and #2, there have been revisions since 1611 and the "Gold Standard" editions are Cambridge (1769) and Oxford (1762). My main Bible is a Cambridge Wide Margin so I use the Cambridge reference.
Not that my Seminary is KJVO or anything but just in case someone there happens to lean that direction...
I, too, use the 1769 wide margin Cambridge edition of the AV1611 almost exclusively for teaching, preaching and personal study.
I especially like it because it has ruled pages for notes in the back and the margins are 1 1/4" wide making it handy for shorter notes next to the text. The center column cross references and alternate readings are also nice.
I have the black text version. The red letter is distracting for me.