Thanks to both of you. I have a couple of followup questions or observations, if you don't mind.
When TreeShare identifies a new person on the RM side that has no corresponding person on the Ancestry side, I've formed the opinion that the order in which I move them to Ancestry doesn't matter. When I was first faced with this task, I thought I needed to move them in a logical order, so that Ancestry could find someone to attach them to, but that was very time consuming, and didn't seem to be necessary. So the way it works must be that if Ancestry can't find a connection, it holds the new person aside until another person (or persons) comes across to fill in the gaps.
When TreeShare shows me records of people on both sides, sometimes it identifies elements that differ. The interesting thing about this is that sometimes these elements don't appear to me to be related to anything I've changed. One of them might be, but there are others where I don't recognize the change. In any case, since I only update on the RM side, I click the boxes on the RM side and tell TreeShare to accept the changes.
Sometimes when TreeShare shows me the corresponding records there are no check boxes to indicate any differences. I wasn't sure what to make of this. I don't have one of these in front of me right now, so I'm depending upon my memory, but I know it wasn't clear - at least not to me - about how to proceed. Eventually I discovered a way of telling TreeShare "never mind about this - remove it from your list of items needing review".
Because I had to develop a method of going through these queued up records - a method which became somewhat automatic - I wondered why RM couldn't incorporate a more efficient, automatic process of its own. I understand the developers are hesitant to do that. But if there's a downside to such automation, I'm wondering if I'll trigger whatever that downside is when I do the same automatic type of thing more slowly.
I will try to remember to do this TreeShare comparison at least once every day when I work in RM. I'm curious. Do other people do it after each and every update they make in RM? To me, that would be burdensome, because sometimes I make multiple updates in one action. For example, when copying children into RM from Family Search.
Thanks again for spending time helping me understand what I'm doing!