After I bought tickets for the number of days I wanted for my family and myself, I was able to make reservations for the dates that I wanted.
Booking Disney California Adventure on those days was still an option, and with a park hopper ticket, I still could have made it into Disneyland those days if it was really important to me.
It turns out the wait wasn’t really all it was cracked up to be.
(So, if that’s been your hope, you may be up the creek.)