[Notjohn]

My experience is that the safest route is to put the SRL ("text" in epub-speak) exactly where Amazon wants to see it, on the first page of the first chapter. I found that was the only way to stop my books (uploaded as epubs to the KDP) opening in the middle of the table of contents. (If they had only opened at the beginning of the TOC, I wouldn't have minded!)

I haven't tinkered with this since the New Look in the Look Inside sample came into play, because it only affects some of my books and I don't understand why. (When I did a count, a month or so ago, I think eight of my books were opening at Chapter One on the Look Inside, and eighteen were opening, as before, at the cover.) I have noticed that when my books open (in Look Inside) at the first chapter, the chapter title is hidden above the first-page view. But when one of Hitch's books opens there, the chapter title is visible. But we all knew that she is smarter than I.

As for opening at or near the end, I've never heard of that! Certainly Amazon would like to know about it, because of its potential effect on Kindle Unlimited reads. (Or has Amazon fixed that?)