Join Date: Jul 2007
Location: San Francisco/Sydney
Programs: UA 1K/MM, Hilton Diamond, Marriott Something, IHG Gold, Hertz PC, Avis PC
Posts: 8,169
1) Correct
2) The staff at the transfer desk (where you drop your bags) will be able to rebook you if you miss the connection. You could also do it on arrival in the domestic terminal if needed (eg, you think you might still make it but then end up missing out), but it'll be easier at the international terminal.
3) Yes, they will rebook. You will need to ask.
4) Yes
5) It won't hurt, if only because it'll make it easier to check on delays/etc.