In December, I will be going with my mother and grandmother, husband, sister and BIL, along with 2 1/2 year old niece and 8 month old daughter. For thrill rides, all adults will want to ride except for my 90 year old (acts like she's 60) grandmother. We don't want to "punish" GG by making her wait with the two little ones while the rest of us ride these attractions, so will need to ride in shifts and make use of parent swap. I understand the overall concept, but not sure how to make it work. Say we are going on Space Mountain. Do all 5 of us that will eventually want to ride need to go to the entrance of the queue to get the parent swap pass, or just the few of us that are riding that shift? Is there anyway to combine this with Fastpass to make it go even quicker? Is there a limit to the number of adults that can participate (ie only 2 adults per child) if so this may pose a problem for our group because my mom will want to ride as well? Thanks for the help. For something that seems so simple, I sure am doing a good job of over thinking it.