That check off list you're referring to is the Commanders check list. He (or she) will conduct ur separation counseling along with a few other admin things. That checklist is then forwarded to transition, then ur orders will be cut.
Wrote my PEBLO's supervisor today and low and behold they were signed and completed on May 18th and as of June 16th I am officially out of the Army. Amazing what happens when you pick up a phone and check on something instead of just saying you'll get it when I get it. Thank goodness it is over.....at least that part.