I am looking for experiences with what I will call an "internal rider swap". That's where a child is tall enough but not brave enough to ride. I anticipate that being the case with my 4 and 6 year old DGD's for rides like ToT and possibly Big Thunder. I understand that the child waits in the line with the rest of the family, then I presume 1 adult would go to a waiting area with them and ride after the rest of the family finishes? Is a second person able to ride again with the person who waited with the child? Has anyone done this that can share what it is like on specific rides?