[Koha] Floating collection: assigning home branch

I'd like to request some help from multi-branch systems that float their collections. - How do you decide which branch to send new copies of books to? Reports? Est. shelf space? - Procedure: what does the process look like? - Does your technical processing/cataloging dept. assign the "home branch" or does the receiving branch? Thank you! Chad -- Chad Roseburg Assoc. Director / IT Automation Dept. North Central Regional Library