I'm so glad to find this thread!
We haven't been to Disney since a one day disastrous trip (we live in FL) when my dd was just turning 4 and hadn't yet been dx with autism. So I hadn't yet looked into the
DAS, although I did get a stroller-as-wheelchair tag for her stroller. Unfortunately, she got sensory overload that day despite that and we ended up leaving.
Me and my two youngest dds' (the rest of the Herd are adults! I've been here off and on for a long time!) are going in May for a Big birthday and little one is now 6.5, verbal and doesn't use a stroller. She is very sensory avoidant and for her, she is fine with waiting in lines if they are outside and calm. It's the loud, active indoor ones that send her spiraling, like It's a Small World. I think I will get a DAS for her, and we will try first each ride we go on , not using it-but if she puts on the brakes at an entrance or says, no, scary-we will use the DAS.
Thanks also for the tip upthread about the sticky notes for the bathroom sensors-she hates auto flushes! She wasn't pt last time so I hadn't though about it. She hates the hand dryer noises too but she can probably just wear her headphones into the restroom and I'll bring a little handtowel for my bag.