Oh, hint:
If using the Maingate for tickets (like we did) the DLR doesn't have all the ticket systems like WDW does, so they have to check everything, yadda yadda, it takes forever. Going in through the hotel gate at the Grand Cali, then out through California Adventure then into Disneyland itself with the 1-day park hoppers they give you for the Maingate is actually faster then the amount of time it takes DL's front gate to check out a WDW Maingate.