We tie and set all the MMB revisions on Monday, except the four front endcap NR pogs and the browser. On Monday we drop and pull only the pogs that don't have new releases in them. New Books 2, Bookclub, Young Adult, PB NR, and D58 NR2,3,4 often have hardlocked new releases so they are dropped and pulled Tuesday AM, even though they were tied and set on Monday. This is not totally foolproof, but it works pretty well.
If you're not sure if something is hardlocked on Monday scan it with a store (guest) scanner, where it will show "item not found" if it can't be sold yet. Or query at a register.
Incoming boxes of books contain new releases mixed with lots of other books, and they are not marked so you can tell. We put book boxes in a transition area in the electronics cage, along with all the CD and DVD boxes that have NR labels. If things aren't located they can't be pulled. Tuesday AM these all get loaded on a tub and pushed.