Thanks for the reply. Going to play it by ear as far as opening. As for as activation, I heard that you had to at least enter the park in order to use that ticket for in that park.
For example, you had to at least use your ticket to enter DCA before you can use that ticket in DCA FPs machines even though you have entered Disneyland. Thus, it would prevent me from bring other peoples Annual Passes in with me and getting fastpasses with them even though they were not there.
I could be totally wrong. Either way thank you for the info. I have to lead a handful of people who haven't been to Disneyland in like 13 years.