For a displacement bid, what is the difference between a paid move displacement and a displacement? Other than the obvious of a paid move.
Are there any hooks or gotchas? Why wouldn't you always bid a paid move for displacement?
I doubt I get displaced but I still like to understand exactly what I am bidding.

For a bid of different equipment and a different base, what is the lock in period? One place I have read 12 months and another I have read 24 months (JCBA).