Thanks, JSWolf —*this is the kind of input I was hoping for; that we could find some consensus and have some examples of what "seems" to work in most combat situations.
I installed Java 1.8 yesterday, so I'm going to install a few more readers into Sigil (one's I had trouble with earlier for some reason.)
But it looks like I might at least get some solid footing in the ebook creation world with what you guys have posted.
Thank you, I do appreciate it.