Well, regarding post 1 - Question 1 - I believe that calling it "Redeposited Item" is the more descriptive/accurate indication of what happened & why the hold is being placed. I'm not an examiner - perhaps someone disagrees.
Post 1 - Question 2 - hold from the date the item was redeposited.
Post 2 - I require that all hold notices be clear and correct. If I am confused by a hold notice, I assume the examiner will be confused as well. Personally, I don't like to confuse my examiners.
On our case-by-case holds and notices, we indicate "case-by-case".