If you can guarantee that you will stay together the entire trip, only one DAS would be needed. But if there is any chance you will split, then get one for each child. You can only be listed on one active DAS at a time though, I think? I'm not wording it correctly - someone with the right words, feel free to help
Also, you aren't guaranteed to 'fit the criteria' unless the CM at Guest Services thinks so - just have a clear, logical explanation why your children cannot handle a standard queue, and why waiting in an alternate location would help.
Excellent info!! Adding 1 more suggestion. If you think there is any possibility that one child will melt down, change their mind, etc...get the return time for both. Example...child A and child B each have a separate DAS. If everyone has a return time attached to child A except child B, and child A now decides he/she doesn't want to ride, if you return together with both children, you MAY (probably) will find that the CM will still allow those linked to child A to enter with the child B who still wants to ride. Since they weren't able to have another DAS time. This is not guaranteed but this is from family who has worked multiple attractions in MK.Just to clarify this point. You can be linked to two DAS cards but you can only hold 1 DAS return time. Also the DAS rider must ride so if you have 2 and say your husband and daughter have their DAS return time under son 1 DAS and you have your return time under son 2 DAS and son 1 decides he no longer want so ride that ride then your husband and daughter can not use son 2's return time to ride.
To be honest all I have heard here is how complicated multiples DAS make it especially if the person holding the DAS is likely to change their mind last minute. If you do go the route of having 2 make sure your daughter is linked to which ever of your son's is least likely to change his mind that way she is more likely to get to ride since she waited already and all.
Thanks everyone!
Omg, I'm so overwhelmed. This is like a different language and I have no idea what anyone just said. I have to read this after the kids from to bed when it's really quiet!