Managed (finally) to get the blog to display a "continue reading..." link ONLY when I want it to. Previously, it would show for every post, whether I set it to be summary/full-post or not. Here is the place I found the way to do it.
So from now on, if you see [continue reading...] in a post, click it to see the rest of that post. I will signify the end of a post with this symbol: ⌘