I'm reviving this post to see if anyone has tips on flying with a ZX-1. We will be flying with a ZRA also, which we plan to gate check. I know that I will need to remove the lithium batteries and put them in hand baggage. I am wondering if I could gate check the ZX-1 with the ZRA attached in freewheel mode. I would detach armrests and other removable items. Any input?